Fixes microsoft/vscode-internalbacklog#1179

https://github.com/microsoft/vscode/issues/101978

Fixes #101946

This is a more scoped fix for #101946. It disable the VS Code triggered events (undo, copy, paste, ...) for webviews if you are on a platform that uses custom title bars

For #101940

For #101922

I can't repo this locally but suspect it may be timing related

Rework workbench.action.searchEditor.deleteResultBlock into search.searchEditor.action.deleteFileResults
closes #100859

Fixes #100456

Fixes #101475

Fixes #101426

Fixes #80288

//cc @jrieken