Fixes page: add Recent sub-tab with newly published fixes feed

[deadpoolook]

Summary

Adds a Recent sub-tab to the Fixes page, showing the most recently published Denuvo fixes across all games (a "what's new" feed), alongside the existing Games grid.

The feed reads the public denuvo_fixes table directly from PostgREST (anon key, same pattern as GetStandardUsageAsync reading user_downloads), embedding each fix's game name/header image and tags in a single bounded query (order=created_at.desc&limit=25). There's no /api/denuvo "recent" endpoint, so no backend change is needed.

What's included

• FixesView.xaml: new Games | Recent tab bar; the recent feed panel (loading ring, empty/error state, card list with cover, game name, "New" badge for fixes published within the last 3 days, description); search + tag pills + pager are gated to Games mode only.
• FixesViewModel.cs: FixesPage enum, ShowGames/ShowRecent/OpenRecentFix commands, RecentFixes collection + RecentFixVm, LoadRecentAsync (warm-started on page load, reloaded on Refresh), loading/empty/error state.
• LuaToolsApiClient.cs: GetRecentDenuvoFixesAsync(limit, ct) — bounded anon PostgREST read with embedded joins; returns null on failure.
• FixModels.cs: DenuvoRecentFix, DenuvoRecentGame, DenuvoRecentFixTag.
• Localization: 5 new keys (Fixes_Tab_Games, Fixes_Tab_Recent, Fixes_New, Fixes_Recent_Empty, Fixes_Recent_Err_Load) added to Strings.resx/Strings.Designer.cs and translated in all 29 language files. Since every key is now translated, PENDING_TRANSLATION in check-i18n.py is left empty (unchanged from upstream).

Verification

• python scripts/check-i18n.py → i18n check OK: 29 language files, 465 keys each, XML valid, placeholders consistent.
• dotnet build LuaToolsGui.sln → 0 warnings, 0 errors.
• dotnet test → 207/207 passing.
• Manually verified the Recent tab loads real data from db.lua.tools and opens a game's fix view on click.

[madoiscool]

Can you add some screenshots of what this looks like please

[deadpoolook]

[deadpoolook]

Você poderia adicionar algumas capturas de tela de como isso se parece, por favor?

AE COMO FICOU