Fixes #34307

* Fix bug causing recommendations to sometimes appear in two places

* Naming

* Group fetch stage calls

also greatly reduce the amount of recreation for menubar changes

Fixes #53019

* adding context change listener and buffering calls to setup the menu

* addressing feedback

Fixes https://github.com/Microsoft/vscode/issues/53860

Fixes #53831

Fixes #53828

fixes #53706

Use events instead of PPromise for search IPC