The crate had never been run through rustfmt, so the CI job's first step
(`cargo fmt --all -- --check`) failed and masked 12 clippy errors behind
it. Fix both.
Beyond the mechanical reformat and the redundant-closure/div_ceil/Default
lints, two changes carry meaning:
- SettingsDialog::on_reload is UI-thread only, so it becomes an Rc. The
Arc was never shared across threads and clippy rightly flagged it as
an Arc over a non-Send/Sync closure.
- WorkerMsg variants lose their shared `Loaded` postfix; the enum's doc
comment already says these are worker completions.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Dion Moult
0aef201d50