Fixes #1486
Fixes #1577

Related to #1571

TODO

• Get working for multiple linked python widgets in same notebook (bidirectional communication)
  • Figure out whether top-level uid is always needed (since when paired with onConfigChange in controlled component situation, it breaks the ability to leverage the config object reference)

    vitessce/packages/vit-s/src/view-config-utils.js

    Line 201 in 60084cd

    const newUid = uid || getNextScope([]);

  • Add React prop to allow bypassing validation during usage as a controlled component (if python knows the view config came from an onConfigChange event, then would bypass validation (for performance). otherwise (e.g., if the config traitlet is updated from the python side), then re-validate.
  • Look into preserving config object reference through all transformations (upgrade functions and zustand "reducer"s - and traitlet updates on python side)
• Check dynamic opacity functionality
• Test in vitessce-python and portal-ui

Change List

• Add useInitialCoordination hook to get the values of the coordination space from the initial config, which can be used for viewState reset buttons.
• Use config object reference as hook dependency when no config.uid is present (to support both controlled and un-controlled component cases).
• Initialize Zustand store using closure over createViewConfigStore function, rather than via useEffect.

Checklist

• Ensure PR works with all demos on the dev.vitessce.io homepage
• Open (draft) PR's into vitessce-python and vitessce-r if this is a release PR
• Documentation added or updated