In the case when the user selects a new video device then goes to Virtual Background without saving first, use the newly selected device for the virtual background preview instead of the saved one

* ref(keyboard-shortcuts) refactor keyboard shortcuts to use redux

fix unsynced default value between config flag and local storage

* code review

* fix build

Convert some files to TS
Remove unnecessary files
Implement redesign
Add noise suppression to picker menu
Fix Popover placement on browser resize