Swap UX improvements
These are the final UX improvements to the current swap interface:
- fix for android < 8
- show sorted list of apps, with app name (aka
android:label
),packageName
, and the icon. - live filter app list based on search field in ActionBar
- apply light/dark theme to all related Activities
- add automatic start/stop for webserver
Details in the commit messages. I think this is ready for a test release!