fix: integrations settings squish on mobile (#812) + polish

PhotoProvidersSection:
- Replace raw <input type=checkbox> with TREK's ToggleSwitch so the
  'spiegeln zu Immich'-style options match the rest of the app.
- Wrap action row in flex-wrap so the connected/disconnected badge
  drops to its own line on mobile instead of clipping.
- Add a short 'Test' translation (memories.testShort) shown on mobile
  in place of 'Test connection' — 14 languages kept in sync.

ToggleSwitch:
- Explicit type='button' (never a form submitter), minWidth + flex-
  shrink:0 so the toggle doesn't get squished next to long labels,
  padding:0 so no inherited UA margin warps the inner circle.

MapSettingsTab:
- 'Mapbox' instead of 'Mapbox GL' on narrow screens — the provider
  card is too cramped on mobile for the full name.
- Drop the 'Experimental' badge on mobile entirely; it overlapped
  the title at that width. Still shown on >=sm.

DisplaySettingsTab:
- Time format buttons show just '24h' / '12h' on mobile; the '(14:30)'
  / '(2:30 PM)' hint stays on >=sm. Test updated to match the role
  query since the label is now split across nodes.

client/src/i18n/translations/zh.ts

@@ -1619,6 +1619,7 @@ const zh: Record<string, string> = {
   'memories.immichAutoUpload': '上传 Journey 照片时同步到 Immich',
   'memories.providerUrlHintSynology': '在 URL 中包含照片应用路径，例如 https://nas:5001/photo',
   'memories.testConnection': '测试连接',
+  'memories.testShort': '测试',
   'memories.testFirst': '请先测试连接',
   'memories.connected': '已连接',
   'memories.disconnected': '未连接',