v1.2.3

Fixed

• Holidays: school breaks and public holidays no longer show up twice in the calendar. OpenHolidays returns sub-regional deviations of a holiday (e.g. Schleswig-Holstein's separate summer/autumn breaks for the islands of Sylt, Föhr, Amrum, Helgoland and the Halligen) as extra Exception-tagged entries with different start/end dates, which read-side de-duplication could not collapse. These sub-regional exception variants are now dropped during sync, leaving one clean entry per holiday. Existing duplicates clear on the next sync (Settings → Holidays → Sync now).