QbzSelect badges now render a "BP" tag for bit-perfect outputs and a
speaker glyph (volume-2) for the rest (real outputs that play audio but
not bit-perfect) — an addition, not a replacement. Only the device select
passes badges, so other selects are unchanged.
Add opt-in `searchable`: long output lists overflowed at 1440p, so the
open list gets a case-insensitive filter box and a 360px scroll cap.
Filtering hides non-matching rows by visibility only (model order intact,
so selected(i) keeps the original index). Backed by a new Rust
TextUtil.contains-ci pure callback (Slint 1.16 has no contains builtin).
cc
vicrodh
bdb9cadad6