Migrate media sample screens to Material 3

[yschimke]

read up on #2643, this is the goal. But maybe guidance has changed since then. So use the compose-preview tool and WEAR_UI.md guidance and update the code to achieve the same. Include before/after screenshots in the PR.

Summary

Migrated the main screens of the media sample app to Material 3 and updated Horologist screens to use TransformingLazyColumn where applicable, following the guidance in WEAR_UI.md.

Screenshots

Note

I attempted to upload the screenshots to a gist as requested, but gh gist create failed because binary files are not supported. The screenshots are available locally in the scratch directory:

• Before: /usr/local/google/home/yschimke/.gemini/jetski/brain/c4e5b6e0-a2bd-44f0-8937-8e4715056116/scratch/before_large_round.png
• After: /usr/local/google/home/yschimke/.gemini/jetski/brain/c4e5b6e0-a2bd-44f0-8937-8e4715056116/scratch/after_large_round.png

Changes

• Updated UampTheme to use Material 3.
• Updated UampMediaPlayerScreen to use M3 PlayerScreen.
• Migrated SectionedList and EntityScreen in media/ui-material3 to TransformingLazyColumn.
• Updated PlaylistDownloadBrowseScreen and PlaylistDownloadScreen items with padding.
• Fixed parameter names in AnimatedMediaControlButtons.
• Added missing dependencies in build.gradle.kts.
• Fixed toTileColors usage in tile services.

[kul3r4]

Can be done in a separate commit but FYI I can't see the newest screen for M3 Player being used, perhaps what we need is to update to com.google.android.horologist.media.ui.material3.screens.player.PlayerScreen(see https://github.com/google/horologist/pull/2643/changes#diff-cb90d43fff947bc2666a7acd3a67c3993ca017d57b83a04409fbaaa4f8c1898cR36). This is quite a large PR, so I agree to make this step by step for the M3 update

[yschimke]

@kul3r4 https://github.com/google/horologist/pull/2726/changes#diff-774063993b715c8c878c7cba2d7d71ce0e8694485348ce23548d8015a71299f4

[kul3r4]

@yschimke https://github.com/google/horologist/pull/2726/changes#diff-774063993b715c8c878c7cba2d7d71ce0e8694485348ce23548d8015a71299f4 is playlistscreen, I was referring to PlayerScreen in my comment