* Adding a few lines to frontend .gitignore files.

* Removing playground and web-common .gitignore files, and generalising root .gitignore file instead.

* Removing redundant SCB client .gitignore file.

* Putting back (regimented) frontend .gitignore files for now, to satisfy CI.

* Moving around some CSS files.

There are no actual changes here. Just file-tidying.

* WIP: UI Redux.

* Frontend: Enabling Vim mode will now show a statusline.

* Adding some JSLine config lines to Marlowe.

* Git-ignoring your local playground config files.

* Fixing the gitignore rules for the frontend `generated` directories.

We were git-ignoring `/generated/`. That works as expected when
`generated` is a directory, but not when it’s a symlink to a directory.

* Fixing some new SCSS variables that were missing from plutus-scb-client.

* Refactoring View.purs, in preparation for moving things around and restyling.

* Restyling header and footer, swapping PNG logo for SVG, and tidying CSS a bit.

* Moving gist controls to the subheader, shifting editor preferences to the right, and adding a second compile button above the editor.

* fixup! Frontend: Enabling Vim mode will now show a statusline.

* Restyling the editor and tidying up some CSS.

* Renaming simulation tab to 'simulations', and changing simulation selection buttons to tabs.

* Splitting the common Gists module into types and views.

* Separating Bootstrap imports out of .

* Refactoring the chain.scss to abstract out the colour choices.

* Fixing fontawesome times/close icon class (fontawesome 5 removed the 'close' alias).

* Restyling the editor and simulator to (start to) match the new designs (and temporarily breaking the transactions view in the process).

* Simplifying gistControls view.

* Adding a missing full stop in a comment.

* Modifying simulations view, and separating the actionsPane into its own module.

* Getting the simulations view closer to the target.

* Removing unnecessary action argument from editor buttons.

* Tidying the transactions view and getting it closer to the new UX specification.

* Tidying simulations and transactions headers, styling Gist error popup.

* Making editor feedback pane minimisable.

* Making demo files menu toggle open/closed (not styled yet).

* FE: Triggering a re-layout whenever Monaco's keybindings change.

...as this can change parts of the display like the status line.

* Removing some unused references.

* Plutus Playground: Fixing keybinding tracking.

The localstorage setting was updated correctly, but the in-memory flag
was not.

* FE: Disabling the minimap.

* Moving the evaluation errors pane out of the main view and into the simulations view, and making it look a bit nicer.

* Further modifying the Gist widget to bring it closer to the UX specification.

* Removing '#'s from simulation/wallet/slot names.

* Removing text from under evaluate/transactions buttons.

* Improving compilation status bar look and behaviour.

* Changed successful compilation message.

* Restyled small screen demo files menu.

* Disabling transaction button when simulation changes.

* Finishing styling of simlation tabs.

* Restyling all over to make sure everything matches the design exactly.

* Improving simulations tabs, and fixing event propogation bug introduced by moving the close button inside the tab.

* A couple of little modifications to the transactions view.

* FE: Adding a utility to call JS's window.scrollIntoView.

* Simplifying editorWrapper code.

* Scrolling simulation errors and transactions into view on (un)successful evaluation.

* Removing some unnecessary comments that helped me find my way around when I started.

* Better fudging of the problem caused by only have one set of transactions in the model.

* Making empty strings valid (because `Nothing` and `Just ""` are indistinguishable in the browser).

* Improving action wallet validation.

* Removing some unnecessary imports.

* Disabling simulate button when code changes after successful compilation.

* Adding another case to the editor feedback text.

* fixup! Scrolling simulation errors and transactions into view on (un)successful evaluation.

* Making Gist ajax error pane closeable.

* Removing hashes and arrows from blockchain visualisation.

* Making the blockchain visualisation a bit nicer to look at.

* Highlighting current demo file.

* Switching to editor view when Gist is loaded.

* fixup! Making Gist ajax error pane closeable.

* Improving temporary fudge to make simulations/transactions UX sensible, in advance of proper remodelling of the state.

* fixup! Disabling simulate button when code changes after successful compilation.

* Adding isValid function to Validation.purs.

* Refactoring and improving action validation.

* Tidying and rationalising view function arguments and type signatures.

* Tidying actions view a bit.

* Making it impossible to create more than 10 wallets in simulations.

* Running fix-purty.

* Making assorted improvements in response to review comments.

* Running fix-purty and removing an unused function.

* One fix, one tiny bit of tidying.

* SCP-1541 Implement the redesign of "open project" dialog (#2551)

* Marlowe playground FE: Implement redesign of open project

* Marlowe playground FE: Make modal header sticky

* Fix open project modal padding

* Add global loading indicator

* Fix error when you have gists but that are not playground gists

* Make the open project dialog full width always

* Global loading indicator should not appear in saving as modal

* Make the open project modal always to occupy full width

* Applied PR feedback

* Applied PR feedback

* niv pre-commit-hooks.nix: update d16e007e -> ac3a4ca0

## Changelog for pre-commit-hooks.nix:
Branch: master
Commits: [cachix/git-hooks.nix@d16e007e...ac3a4ca0](cachix/git-hooks.nix@d16e007...ac3a4ca)

* [`908bbd60`](cachix/git-hooks.nix@908bbd6) Add Fourmolu
* [`5fa5c3a5`](cachix/git-hooks.nix@5fa5c3a) Add hunspell to check for spelling mistakes

* Breaks compilation with haddock enabled.

* niv-updater: also blacklist nixpkgs

See comment in the workflow. It's basically always a mass-rebuild, and
it doesn't gain us much.

I considered just making the updater action run less frequently, but I
don't think we even want to update it every month!

* Analytics name fix (#2569)

* Renaming handleActionWithAnalyticsTracking to withAnalytics.

* Replacing some PP analytics functions with ones from web-common.

* Renaming handleAction' to handler.

* SCP-1517 unsaturated builtins for extrinsically typed syntax/semantics (#2556)

* removing saturated builtins from Extrinsic syntax + ren/sub

* some signature equipment

* progress: term arg saturation step

* progress: beta-builtin

* progress: type applications

* interleaved telescopes

* progress: ival

* progress

* CK: computation case

* CK

* erasure + removing old builtins from typechecker

* semantics of builtins

* removing old builtin semantics

* Renaming module Playground.Schema to Schema.View. (#2567)

* niv easy-purescript-nix: update 860a95cb -> c8c32741

## Changelog for easy-purescript-nix:
Branch: master
Commits: [justinwoo/easy-purescript-nix@860a95cb...c8c32741](justinwoo/easy-purescript-nix@860a95c...c8c3274)

* [`c5d989d5`](justinwoo/easy-purescript-nix@c5d989d) Spago 0.18.1

* niv mvn2nix: update a4c9ec1c -> 9348fc40

## Changelog for mvn2nix:
Branch: master
Commits: [fzakaria/mvn2nix@a4c9ec1c...9348fc40](fzakaria/mvn2nix@a4c9ec1...9348fc4)

* [`9348fc40`](fzakaria/mvn2nix@9348fc4) Updated github actions ([fzakaria/mvn2nix⁠#32](http://r.duckduckgo.com/l/?uddg=https://github.com/fzakaria/mvn2nix/issues/32))

* niv pre-commit-hooks.nix: update ac3a4ca0 -> c7e3896e

## Changelog for pre-commit-hooks.nix:
Branch: master
Commits: [cachix/git-hooks.nix@ac3a4ca0...c7e3896e](cachix/git-hooks.nix@ac3a4ca...c7e3896)

* [`fcfb9450`](cachix/git-hooks.nix@fcfb945) Add html-tidy for HTML validation
* [`f29bddb9`](cachix/git-hooks.nix@f29bddb) Add documentation for custom user defined hooks

* Fix annoyance in output of serialised code in PLC command

* webghc (and docker image) was broken (#2577)

* Marlowe Playground Frontend: Separate simulator from marlowe editor (#2560)

* Created a new view for MarloweEditor
* Fixed keybinding selector for marlowe editor
* Moved linter, holes and initial marker logic from simulation to marlowe editor
* Fix double provider information
* Renamed Simulation modules
* Separated simulation bottom panel and actions

The bottom panel in the MarloweEditor is commented as it’s very tied to the simulation. It will be restored in a future commit of this refactor

* Fix bottom panel in marlowe editor
* Fix simulation language color
* Make the simulation editor readonly
* Renamed _marloweEditorSlot to _simulatorEditorSlot
* Reimplement workflow buttons
* Move select hole to MarloweEditor
* Fix simulation state on refresh
* Remove unused code from Marlowe editor bottom panel
* redesign simulation right pane
* Fix file actions not being shown in Marlowe editor
* Remove isValidContract from the simulation as it should always be valid
* Fix undo button problem
* Improved how we show a slot range

* Add NFData instances for Tx and ChainState

* Correcting an out-of-date reference in the PR template.

* Adding a few lines to frontend .gitignore files. (#2559)

* Adding a few lines to frontend .gitignore files.

* Removing playground and web-common .gitignore files, and generalising root .gitignore file instead.

* Removing redundant SCB client .gitignore file.

* Putting back (regimented) frontend .gitignore files for now, to satisfy CI.

* Fixing some problems caused by a bad merge resolution.

* Fixing some problems with out UUID types being invalid.

The UUID validation rules are not as simple as we first thought.

* Correcting the JSON instances for Plutus.Trace.Tag.

Co-authored-by: Kris Jenkins <kris.jenkins@tweag.io>
Co-authored-by: Hernan Rajchert <hrajchert@gmail.com>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Radu Ometita <radu.ometita@gmail.com>
Co-authored-by: Michael Peyton Jones <michael.peyton-jones@iohk.io>
Co-authored-by: James Chapman <james.chapman@iohk.io>
Co-authored-by: kwxm <kenneth.mackenzie@iohk.io>
Co-authored-by: David Smith <shmish111+github@gmail.com>