Implement edit-player. Optimizations.

templates/modals/delete_clan.html

@@ -33,10 +33,7 @@
                 modalBodyInput.innerText = selectedClan;
 
                 const submitButton = deleteClanModal.querySelector('button[name="submit"]');
-                submitButton.addEventListener('click', function (e) {
-                    e.preventDefault();
-                    submitButton.onclick = function () {}
-
+                submitButton.addEventListener('click', function () {
                     const clanId = parseInt(clanList.value);
 
                     fetch("/clan/" + clanId, {
@@ -69,7 +66,7 @@
                         .catch((error) => {
                             throw new Error(error)
                         });
-                })
+                }, { once: true });
             });
         }
     });