✨ Major Logic & Reliability Improvements #

• Robust Mathematical Conversion: Implemented a continuous mathematical conversion for the Ethiopian calendar (handling the 4-year cycle). This fixes the fragility of manual year-check thresholds and ensures accuracy for all future dates.
• Fixed "One-Year Jump": Corrected the conversion bug where dates were jumping ahead by +1 year after the Gregorian New Year but before the Ethiopian New Year.
• Immediate UI Updates: Optimized selection logic for immediate feedback upon tapping a date.
• Improved Visual Feedback: Switched selection interaction to InkWell for native Flutter ripple effects and increased responsiveness.

🌍 Localization #

• Full support for month names, day names, and UI labels in:
  • English (US)
  • Amharic (AM)
  • Oromiffa (OR)
  • Tigrinya (TI)
  • Sidama (SI)
  • Somali (SO)

Initial Release of Ethiopian Date Picker.

• Gregorian <-> Ethiopian conversion.
• Dialog-based UI.
• Year selection grid.
• Min/Max date constraints.