Update SMO to 4.3.1.2 (microsoft#21292)

* Update SMO to 4.3.1.2

* vBump

Fix headers being exported twice from notebooks (microsoft#21195) (mi…

…crosoft#21201)

* fix headers being exported twice

* simplify

* fix test

Update STS to 4.2.1.6 for async revert (microsoft#20494)

Update STS version to port SqlClient library update (microsoft#20406)

update STS version (microsoft#20155)

Adds toggle button to switch between estimated and actual execution p…

…lans (microsoft#19629) (microsoft#19706)

* Creates toggle button to switch between estimate and actual query plans

* Renames ID for the toggleActualExecutionPlanModeAction class

* Renames button back to explain

* Creating actual execution plans resembles SSMS

* Adds CTRL/CMD + L shortcut to display estimated execution plans

* Alphabetically organizes telemetry actions

* Adds telemetry when the setting for actual execution plan toggle is used

* Resolves build errors

* Fixes broken unit tests.

* Code review changes

* Removes unnecessary null-coalescing operator.

* Creates placeholder icons for actual execution plans enabled

* Code review changes

* Shortens label names

* Telemetry moved to toggle button

* Telemetry review changes

* Clarifies misleading label

Adding the mirrored parallelism icon (microsoft#19391) (microsoft#19428)

Co-authored-by: Aasim Khan <aaskhan@microsoft.com>

increase nps survey probability (microsoft#19175) (microsoft#19177)

Updating readme and change log to reflect major changes in 1.36 (micr…

…osoft#19138)

Updating Changelog with Hotfix notes (microsoft#18760)