## Description
Instead of applying a code patch, this PR uses build time [product
flavors](https://developer.android.com/build/build-variants#product-flavors)
to define the existing default and an app store variant. This is more
robust than maintaining a patch file and making sure it is applied
before building.
The app store variant applies the same code changes (removing install
permission, requiring leanback, & setting `UpdateChecker.ACTIVE`), but
via manifest placeholders/merging and `BuildConfig` entries.
There are no user facing changes.
### Related issues
None
### Testing
Built the variants and verified manifest changes via aapt
## Screenshots
N/A
## AI or LLM usage
None
## 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
## Description
This PR updates the debug build config to allow side by side
installation with the mainline/stable release by changing the app name
and app ID.
This is a convenience change to allow contributors to test debug builds
on their personal devices without overwriting the existing stable
version of the app
