fixes #31609

Use `Array<T | U>` when dealing with union types instead of  `(T | U)[]`

fixes #63145

* lifecycle - signal READY earlier to allow commands to run

* lifecycle - move READY phase as last thing into shell

* workbench - isCreated() => isRestored()

* lifecycle - tweak phase

* remove more TPromise (for #53526)

* fix failing webview integration tests on macOS

* do not instantiate TPromise (fix #62716)

* more TPromise removal and fixes

* 💄

* 💄

debt - let menu listen to (new) menu registry change events instead of listing to the extension host being ready. that simplifies this a lot and help with show menu sooner

* clean up titlebar layout

* validating fix on macOS and re-adding comment

In these cases, the programmer has explicitly indicated that the type should be nullable

#53989

fixes #53989

We compile using the alwaysStrict flag so these directives are not needed