Introduces the 'menu_eme_initials' key with the value 'EME Initials' to the menu_lang.php files for multiple languages, ensuring consistent menu options across all supported localizations.
Introduces a new 'Most Worked Callsigns' page, controller, model, and view to display callsigns worked multiple times from the active logbook. Adds language support for this feature in multiple languages and updates the navigation menu to include a link to the new page. Also includes DataTables integration and filter options for bands, modes, satellites, date range, and minimum QSOs.