Replace components: user profile

[cairocoder01]

On the user profile page (/settings), replace old form controls with the appropriate web components.

Replacements:

• Your Apps
  • Use dt-toggle for app activation toggle
• Multiplier Preferences
  • Languages selection - multi-select-button-group
  • People Groups - multi-select
  • May need to apply custom CSS styles via CSS properties to make selected values use primary blue background
• Notifications
  • Use dt-toggle for toggles

After removing old js-based controls, search for usages of that same js code. If it is no longer in use, remove the unneeded code.