feat: add album favorites in header and unify browse controls

Improve album workflow with in-header favorite toggle, keep favorite state synced from backend, and normalize browse top-bar sizing while increasing audio output buffer headroom to reduce glitches.

rust/src/player/output.rs

@@ -10,7 +10,9 @@ use std::sync::{
 };
 use symphonia::core::audio::AudioBufferRef;
 
-const RING_BUFFER_SIZE: usize = 32 * 1024;
+// Bigger output buffer gives the decoder/network pipeline more headroom,
+// reducing audible underruns on transient CPU/network stalls.
+const RING_BUFFER_SIZE: usize = 256 * 1024;
 
 pub struct AudioOutput {
     _ring: SpscRb<f32>,