Streaming and Backend Interactor service overhaul, removed the need for copypasting

• Cleans up Backend Interactor to not be a cesspool of copypasta and instead be a proxy object that stores credentials
  • also streamlines all api calls to take object as arguments for easier proxying
• Initial streaming support:
  • Initial version of parsing proxy object for websocket
  • Only User socket support (Home TL + Notifications + Deletes)
  • Off by default due to BE bugs
  • Only TL update and notifications update are supported, deletes are ignored for now
  • Option in settings that actually stops/starts the socket.