get rid of dependencies on preferences, remove neverShowAgain parameter, using storage boolean solely instead, get it working

* Add search.mode option to control default search experience

* Move resource serializer to Query Builder

This is no longer being used

Use this to disable the webview find command in those cases

* 💄 node tests

* lift some tests to browser

* fix tests

* fix tests

* Use RimRafMode.UNLINK in tests to avoid filesystem contention (#114024)

* Add `rimrafWithRetries` for tests which incorrectly continue writing to the fixture directory even after the test signals completion

* 💄 No need to pass in RimRafMode.UNLINK since that is the default

* Also retry in case of EPERM

* Add some logging to check if rimraf really fails 5 times

* Fix retry logic

* Improve BackupTracker disposing to avoid fs writes after the test finishes

Fixes microsoft/vscode-internalbacklog#1709

Fixes #113662

fix #112621

Part of microsoft/vscode-internalbacklog#1709