Origin Isle v1.4.0

Fixes notification casting dying permanently after swiping the app off recents on OriginOS (vivo).

• The Reconnect button was a silent no-op after a process kill — requestRebind() only works on
  a listener that was explicitly unbound, and a kill never does that. Reconnecting now toggles the
  listener component off/on instead, which forces the system to actually rebind it.
• The foreground service now always starts (previously skipped when the keep-alive accessibility
  service was on, which turned out not to anchor the process reliably after a kill), and it restarts
  itself via an alarm if OriginOS swipes it away.
• Added an onboarding/setup step for vivo's "Autostart + Associated startup" — without it, nothing
  brings casting back after a swipe-away except a reboot.
• Cast tab setup status now refreshes live instead of going stale after a trip to Settings.

Thanks to @Martimborgss for tracking this down and fixing it.