- Added new utility functions `espn_dates_for_local_day` and `filter_events_local_day` to handle local timezone date calculations and event filtering.
- Updated `ESPNClient` to support optional date parameters in `fetch_scoreboard_with_calendar` and `fetch_match_states` methods, allowing for more precise data retrieval.
- Modified `WorldCupCommand` and `WorldCupLiveService` to utilize the new date range functionality, ensuring accurate event reporting based on local time.
- Implemented unit tests to verify the correct behavior of date handling and event filtering in various scenarios.
- Introduced World Cup command and service settings in `config.ini.example`, `config.ini.minimal-example`, and `config.ini.quickstart` to enable FIFA World Cup score tracking and updates.
- Enhanced `espn_client.py` with methods to fetch tournament calendar and match states, supporting the new World Cup features.
- Updated `sports_command.py` to resolve World Cup nation names and integrate with the new command.
- Added translations for World Cup commands and messages in multiple languages, ensuring comprehensive support for users.
- Included mappings for World Cup nations in `sports_mappings.py` to facilitate accurate team identification.