* feat(themes): install counts, downloads, popularity & sort in the Theme Store
Each registry theme now carries an install count and a last-changed date. Store
rows show them in a dedicated meta panel (author, popularity bar, total
downloads, last changed), plus a sort dropdown (most popular / newest / name),
zebra-striped rows, a numbered pager, and a note that the stats refresh daily.
Adds a shared formatRelativeTime helper (formatLastSeen now delegates to it).
* test(themes): cover sort modes, pager jump and relative-time formatting
* fix(build): gate nvidia_quirk_active to Linux
Its only caller is the Linux branch of theme_animation_risk, so on Windows and
macOS the function was dead code and tripped clippy's -D warnings.
* docs: CHANGELOG + credits for theme store download stats & sort (#1036)
* feat(themes): warn about animated themes on high-CPU setups
Show a warning icon + tooltip on animated themes (those defining
@keyframes) in the store and in Your Themes, on Linux setups where
animation is costly — the Nvidia WebKit quirk is active or compositing
is forced off. The Nvidia detection already runs once at startup; its
result is recorded (theme_animation.rs) and read via a new
theme_animation_risk command — no GPU re-probe. Display-only; never
shown off Linux. The animated flag comes from the registry (store) or
the theme CSS (Your Themes).
* docs(themes): note the animated-theme warning PR in the Theme Store entry
Psychotoxical