## Description
This PR is mostly a proof-of-concept for setting up automated UI
testing. The tests use Roboelectric so they can run without an emulator.
There is also a sample instrumented test for running on emulators or
devices for future tests.
It adds two basic automated UI tests for adding a server. These are sort
integration tests because they use the actual implementations for the
view model and services like `ServerRepository` and `JellyfinServerDao`.
Also, moves the bulk of `MainActivity`'s compose code into a function
for future tests.
### Related issues
N/A
### Testing
Local testing
## Screenshots
N/A
## AI or LLM usage
None
Remembers changes in playback tracks across playbacks. So, if you change
the audio track, quit the app, and return to the same id, the app will
play the audio track previously chosen.
Additionally, this PR fixes a UI inconsistency when there are multiple
versions of a item. Previously sometimes the audio/subtitle tracks for
wrong version would be shown during playback.
