feat(tournament): update mini championship creation to include location

- Modified addMiniChampionship method to accept location (ort) instead of tournament name.
- Updated frontend components to reflect the change, including new input for location and localization updates for German language support.
- Enhanced validation to ensure location is provided during mini championship creation.

backend/controllers/tournamentController.js

@@ -75,12 +75,12 @@ export const addTournament = async (req, res) => {
     }
 };
 
-// Minimeisterschaft anlegen (Turnier + 6 Klassen)
+// Minimeisterschaft anlegen (Turnier + 6 Klassen); Name: "Minimeisterschaften <Jahr> Ortsentscheid <ort>"
 export const addMiniChampionship = async (req, res) => {
     const { authcode: token } = req.headers;
-    const { clubId, tournamentName, date, year, winningSets } = req.body;
+    const { clubId, ort, date, year, winningSets } = req.body;
     try {
-        const tournament = await tournamentService.addMiniChampionship(token, clubId, tournamentName, date, year, winningSets);
+        const tournament = await tournamentService.addMiniChampionship(token, clubId, ort, date, year, winningSets);
         if (clubId && tournament && tournament.id) {
             emitTournamentChanged(clubId, tournament.id);
         }