feat(club): refine access control in loadOpenRequests method

- Added a check for access permissions before loading open requests to enhance security and prevent unauthorized access.
- Updated the mounted lifecycle hook to conditionally call loadOpenRequests based on access permissions, improving user experience and performance.

frontend/src/views/ClubView.vue

@@ -135,6 +135,7 @@ export default {
         },
         async loadOpenRequests() {
             try {
+                if (!this.accessAllowed) return;
                 const clubId = this.getClubId();
                 const response = await apiClient.get(`/clubmembers/notapproved/${clubId}`);
                 this.openRequests = response.data;
@@ -191,7 +192,9 @@ export default {
     },
     async mounted() {
         await this.loadClub();
-        await this.loadOpenRequests();
+        if (this.accessAllowed) {
+            await this.loadOpenRequests();
+        }
     }
 }
 </script>