Show album release year and description

[hussainarslan]

Shows album release details that were previously missing from the album view.

Changes:

• displays the album release year alongside song count and duration
• shows the YouTube Music album description in a stable three-line preview
• opens the full description in a reusable, scrollable popover without shifting the album layout
• restricts year parsing to album-like metadata so numeric titles are not mistaken for release years

Validation:

• 2,953 unit tests passed
• hosted unit and UI suites passed on macOS 15 and macOS 26
• SwiftLint and SwiftFormat passed
• universal release app build and bundle verification passed
• branch autoreview found no actionable issues

Album metadata and description preview:

Full description popover: