pactl set-default-sink/source is a no-op under PipeWire - WirePlumber owns
the default and only honours wpctl, which takes node ids from a different
namespace than pactl's indices. The panel now resolves ids from wpctl status
and verifies the default actually moved instead of reporting success blindly.
A device whose ports are all 'not available' cannot become the default at all;
those are greyed and labelled (unplugged) rather than silently failing.
Speaker and mic glyphs on the home sliders 14px -> 19px.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Cn3dHfbgNYdbZvzb1b3GQt
5f8f38840b