feat(ui): responsive queue with progressive column priority (Year -> Genre -> Composer) & -v flag

[susamn]

Summary of Changes

1. Guaranteed Core Columns Across All Displays:

   • Title, Lyr (when lyrics active), Album, Artist, Plays (when metadata active), Mark (when metadata active), Rating (when metadata active), and Duration are always preserved and displayed across all screens and splits.

2. Progressive Priority for Optional Columns:

   • Optional columns are added automatically as screen width permits based on priority:
     1. Priority 1: Year (added first as width allows)
     2. Priority 2: Genre (added next as width allows)
     3. Priority 3: Composer (added as width allows; receives SetExpansion(1))
     4. Priority 4 (Last): Type (added on ultra-wide screens)
   • When Composer is omitted, Artist receives SetExpansion(1).
   • Text column truncation caps dynamically scale via queueColumnTruncation so metadata and duration columns never get pushed off screen.
   • Live terminal resize is handled automatically via SetDrawFunc.

3. Lyrics Viewer Placement:

   • Anchors over Year when visible, or over the right 50% of the Queue table when Year is omitted.

4. CLI -v Version Flag:

   • mpdtui -v prints version.String and exits immediately.
   • Updated README.md usage.

Verification

• Tested with make vet fmt build test. All tests pass.