Some parts of the ui still showed the setting for flipping the video, even if the flag indicated otherwise
Also fixes the case where setting a virtual background ignores the stored localFlipX setting
* fix(video-select): remove video preview from device selection and fix video switch on android browsers
* simplify if statement
* add for all mobile devices the stop stream
* move mobile check to middleware
* code review
Create separate tabs for Audio and Video in the Settings Dialog
Move some settings from the More tab to Audio/ Video tab
Implement redesign
Convert some files to TS
Move some styles from SCSS to JSS
Enable device selection on welcome page