Enhance security and error handling in various components by refining error catch blocks to ignore specific errors, improving code clarity and consistency across the application.

components/MannschaftenUebersicht.vue

@@ -103,7 +103,7 @@
 
 <script setup>
 import { ref, onMounted } from 'vue'
-import { Calendar, Users, BarChart } from 'lucide-vue-next'
+import { Users } from 'lucide-vue-next'
 
 const mannschaften = ref([])
 
@@ -124,7 +124,7 @@ const loadMannschaften = async () => {
       return
     }
     
-    mannschaften.value = lines.slice(1).map((line, index) => {
+    mannschaften.value = lines.slice(1).map((line, _index) => {
       // Besserer CSV-Parser: Respektiert Anführungszeichen
       const values = []
       let current = ''