Several minor bug fixes (#1866)

## Description
Another PR to gather small bug fixes:
- Fix aspect ratio for episodes on person page
- Use the song's artist instead of the album's artist on album page
- Fix how the dim percentage is applied to the OS screensaver dim
percentage (#1834)

### Related issues
Fixes #1851 
Fixes #1863

### Testing
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## Screenshots
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## AI or LLM usage
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and how you tested it -->

app/src/main/java/com/github/damontecres/wholphin/services/ScreensaverService.kt

@@ -85,7 +85,6 @@ class ScreensaverService
          * Reset the timer before showing the in-app screensaver
          */
         fun pulse() {
-            Timber.v("state=%s", _state.value)
             waitJob?.cancel()
             if (_state.value.enabled) {
 //                Timber.v("pulse")