* fix(themes): show an offline banner when the Theme Store is unavailable
When the registry can't be fetched and no catalogue is cached, the store
now shows a clear offline banner (icon, message, retry) in place of the
list, and hides the search/filter toolbar — there is nothing to browse.
The cached-catalogue fallback with its offline indicator is unchanged, so
the store still works offline when a catalogue was previously cached.
* docs(themes): note the offline-banner PR in the Theme Store entry
Add PR #1013 to the still-unreleased Theme Store changelog and credits
entry, alongside the other follow-ups.
The community Theme Store grew large enough that browsing it meant
scrolling through the whole catalogue. Paginate it (12 per page) with a
Prev / "Page X of Y" / Next pager that resets to page 1 on filter changes
and scrolls back to the top of the list when paging.
Also fix the refresh button resetting the scroll position. It set the
top-level loading state, which unmounted the list and collapsed the
scroll viewport so it clamped back to the top. Refreshing now keeps the
existing list mounted and only spins the refresh icon; the full-page
loading and error placeholders are reserved for the initial load.
Adds themeStorePagePrev / PageNext / PageStatus across all nine locales
and a ThemeStoreSection test covering pagination, filtering, page reset,
and the refresh-keeps-scroll behaviour.
Psychotoxical