Expanded the REGEXP pattern in SQL queries to include '/R' suffix when filtering and grouping col_call values. This ensures callsigns ending with '/R' are handled consistently with other suffixes.
Updates SQL logic to group callsigns by their base identifier, stripping suffixes like /P, /MM, /AM, /QRP, /LH, and /BCN. This ensures contacts are aggregated correctly for operators using such suffixes.
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.
