New Feature: Volume Entity Follows Active Entity
Added follow_active_volume option to make volume controls automatically target the currently playing entity when music_assistant_entity is configured.
- Note: This will override the volume_entity if configured.
New Feature: Expand on Search
Added expand_on_search option to temporarily expand the card to normal size when search is open, only available when always_collapsed is enabled. Closes #56
- Note: This provides a compact card normally but full-size search experience when needed.