Add calendar and share actions to event details

[vareversat]

Summary

• Add calendar integration to allow users to add bridge closure events to their preferred calendar app
• Add share functionality to allow users to share event details via messaging apps
• Add two new action buttons to the event details bottom sheet with matching app aesthetics

Changes Made

Dependencies (Using Requested Versions)

• Added device_calendar_plus: ^0.7.1 for calendar integration (modern, maintained plugin)
• Added share_plus: ^13.2.0 for sharing functionality (latest version)

New Files

• lib/service/event_share_service.dart: Service class with static methods for calendar and share actions

Modified Files

• lib/widgets/bottom_sheets/forecast_information_bottom_sheet.dart: Added two action buttons at the bottom
• pubspec.yaml: Added new dependencies
• lib/l10n/app_en.arb: Added localization strings for English
• lib/l10n/app_fr.arb: Added localization strings for French
• lib/l10n/app_es.arb: Added localization strings for Spanish

Platform-Specific Configurations

Android (android/app/src/main/AndroidManifest.xml)

• Added calendar permissions: READ_CALENDAR and WRITE_CALENDAR

iOS (ios/Runner/Info.plist)

• Added NSCalendarsUsageDescription for calendar access (iOS 10-16)
• Added NSCalendarsFullAccessUsageDescription for full access (iOS 17+)
• Added NSCalendarsWriteOnlyAccessUsageDescription for write-only access (iOS 17+)
• Added CFBundleLocalizations to support calendar dialog in all app languages (en, fr, es)

UI Changes

• Added "Add to Calendar" button with calendar icon (primary color theme)
• Added "Share Event" button with share icon (secondary color theme)
• Buttons use the app's existing rounded button style (border radius: 17)
• Buttons are placed in a row at the bottom of the event details bottom sheet

Why device_calendar_plus?

• Modern, actively maintained fork of device_calendar
• Cleaner Dart API
• Built-in timezone handling (no need for separate timezone package)
• Full RRULE support for recurring events
• Better error handling with typed exceptions
• Compatible with current SDK versions

Verification

• Code follows existing patterns and conventions
• Uses Material Design 3 components
• Supports all three app languages
• Respects app's color scheme and styling
• Includes all required platform-specific configurations per library documentation
• Uses requested dependency version (device_calendar_plus: ^0.7.1)

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0.86957% with 114 lines in your changes missing coverage. Please review.
✅ Project coverage is 22.00%. Comparing base (31bcac8) to head (2bec707).

Files with missing lines	Patch %	Lines
lib/models/boat_forecast.dart	0.00%	46 Missing ⚠️
lib/l10n/app_localizations_es.dart	0.00%	23 Missing ⚠️
lib/l10n/app_localizations_fr.dart	0.00%	23 Missing ⚠️
lib/l10n/app_localizations_en.dart	0.00%	15 Missing ⚠️
lib/models/maintenance_forecast.dart	0.00%	7 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #381       +/-   ##
===========================================
- Coverage   33.18%   22.00%   -11.18%     
===========================================
  Files          25       25               
  Lines        1088     1145       +57     
===========================================
- Hits          361      252      -109     
- Misses        727      893      +166     

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