Feature/show status on cards

[reniko]

Summary

The status label on Kanban cards is redundant — the column the card sits in already communicates the status. This PR adds a per-user setting to hide it to safe some space on the cards

• New user setting hideStatusOnCards ("enable" | "disable", default "disable")
• Setting is persisted server-side (same JSON store as all other user preferences)
• New Kanban Preferences section in Profile → User Preferences
• 14 translation files updated (settings namespace, 7 new keys each)

Changed files

File	Change
app/_types/user.ts	New HideStatusOnCards type + optional field on User
app/_types/index.ts	Barrel export
app/_schemas/user-schemas.ts	New kanbanSettingsSchema
app/_components/FeatureComponents/Profile/Parts/UserPreferencesTab.tsx	New Kanban FormWrapper section
app/_components/FeatureComponents/Kanban/KanbanItemContent.tsx	Conditional rendering via useAppMode()
app/_translations/*.json	14 language files, settings namespace

No existing functionality changed. The default ("disable") keeps the current
behaviour for all existing users — fully backward compatible.

Executed tests

• Default state (no setting touched) — status label visible on cards
• Set to "Hide status", save — toast appears, label disappears on board
• Reload page — setting persists, label stays hidden
• Set back to "Show status", save — label reappears
• Language switched to German — section and dropdown options translated correctly
• yarn lint — no errors
• yarn tsc --noEmit — no errors