Improve media artwork display in MediaRouteControllerDialog

[MGaetan89]

Description

This PR improves the display of the media artwork so it no longer stretches in the MediaRouteControllerDialog.

Note

It's not possible to use network images in Compose Preview. I also didn't manage to use local images (unless the are in src/main, which is not what we want). So for now I'm drawing a simple image.

Changes made

• Dynamically adjust the content scale of the media artwork based on the artwork size.
• The content scale logic is the same as the one used in AndroidX MediaRouter:
• https://github.com/androidx/androidx/blob/3ce6e66a67c1a2cf862b7fe10d7a07d67d85a1f9/mediarouter/mediarouter/src/main/java/androidx/mediarouter/app/MediaRouteControllerDialog.java#L620-L621
• Update the corresponding screenshot test to cover landscape, square and portrait artworks.

[Copilot]

Copilot reviewed 1 out of 4 changed files in this pull request and generated no comments.

Files not reviewed (3)

• mediarouter-compose/build.gradle.kts: Language not supported
• mediarouter-compose/src/main/java/ch/srgssr/androidx/mediarouter/compose/MediaRouteControllerDialog.kt: Language not supported
• mediarouter-compose/src/screenshotTest/java/ch/srgssr/androidx/mediarouter/compose/MediaRouteControllerDialogScreenshot.kt: Language not supported

Comments suppressed due to low confidence (1)

gradle/libs.versions.toml:67

• [nitpick] The dependency name 'coil-compose-core' is very similar to the existing 'coil-compose' dependency; consider adding a comment or documentation to clarify the distinct purpose of each dependency to avoid confusion.

coil-compose-core = { group = "io.coil-kt.coil3", name = "coil-compose-core", version.ref = "coil" }

[github-actions]

Code Coverage

Overall Project	29.76% -2.35%	🟢
Files changed	21.88%	🟢

File	Coverage
MediaRouteControllerDialogViewModel.kt	75.94% -2.26%	🟢
MediaRouteControllerDialog.kt	0% -11.22%	🟢

[StaehliJ]

I can't see any image or metadata inside the MediaControllerView. It seems the mediaDescription inside the corresponding ViewModel doesn't update.

[MGaetan89]

I can't see any image or metadata inside the MediaControllerView. It seems the mediaDescription inside the corresponding ViewModel doesn't update.

I've updated the PR so the artwork is displayed now. I've pushed a few commits for specific small changes, the main one being 9d7d318, where I introduce a MediaSession.