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

feat(a11y): Globally improve accessibility for screen reader users

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