Previewing media unhelpfully hijacks iOS media controls

**Is your feature request related to a problem? Please describe.**
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]

1. Send a video
2. Hit play to preview
3. Observe your other media is paused (podcast, music, whatever)
4. Send your video
5. Try to resume your paused media (control centre, Home Screen) and observe you can't - it's been hijacked by the video you were sending and can only resume that

**Describe the solution you'd like**
Either to just preview without disturbing what I'm already doing, or to resume my previous media when finishing previewing.