refactor(player): remove unused execution flow

[alperozturk96]

Changes

• PlayerActivity only used for audio playback and PreviewPlaybackFragment responsible for previewing media item. This was causing confusion and it cleaned up via this PR.
• Additionally, contains small UI fixes such as 3 nav-bar color not matches with device mode and colliding with player controls.

[alperozturk96]

/backport to stable-35.0.x

[github-actions]

📱 QA build

Download	app-qa-debug.apk
QR code	Open the QR code for this download
Commit	05b5f26
Version	17724
Available until	7 days after this build

The QA build installs alongside a released Nextcloud app, so you can keep
using your existing install while testing.

Downloading the file requires a GitHub account, so open this link on the
device you want to test on, or transfer the APK to it.

[github-actions]

stable35-IT test failed: https://www.kaminsky.me/nc-dev/android-integrationTests/17724-IT-stable35-08-45

[codecov]

Codecov Report

❌ Patch coverage is 1.40845% with 280 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...extcloud/client/player/ui/audio/AudioPlayerView.kt	0.00%	72 Missing ⚠️
...loud/client/player/ui/audio/AudioPlayerActivity.kt	0.00%	59 Missing ⚠️
...loud/android/ui/preview/PreviewPlaybackFragment.kt	0.00%	25 Missing ⚠️
.../nextcloud/client/player/media3/PlaybackService.kt	0.00%	21 Missing ⚠️
...wncloud/android/ui/preview/PreviewImageActivity.kt	0.00%	20 Missing ⚠️
...oud/client/player/ui/audio/AudioPlayerViewModel.kt	0.00%	14 Missing ⚠️
...wncloud/android/ui/activity/FileDisplayActivity.kt	0.00%	11 Missing ⚠️
...tcloud/client/player/media3/PlaybackQueueLoader.kt	11.11%	8 Missing ⚠️
...xtcloud/client/player/ui/audio/AudioPlayerPager.kt	0.00%	8 Missing ⚠️
...d/client/player/ui/audio/AudioPlayerScreenEvent.kt	0.00%	8 Missing ⚠️
... and 10 more

📢 Thoughts on this report? Let us know!

pr is updated

[github-actions]

Codacy

SpotBugs

Category	Base	New
Bad practice	32	32
Correctness	56	56
Dodgy code	184	184
Experimental	1	1
Malicious code vulnerability	2	2
Multithreaded correctness	26	26
Performance	35	35
Security	17	17
Total	353	353

[daniele-verducci]

Perfect