Implement edit-player. Optimizations.

templates/modals/delete_player.html

@@ -38,10 +38,7 @@
                 const oppClanListIndex = document.getElementById('opponent-clan').selectedIndex;
 
                 const submitButton = deletePlayerModal.querySelector('button[name="submit"]');
-                submitButton.addEventListener('click', function (e) {
-                    e.preventDefault();
-                    submitButton.onclick = function () {}
-
+                submitButton.addEventListener('click', function () {
                     fetch("/player/" + playerId, {
                         method: "DELETE",
                         headers: {
@@ -60,7 +57,7 @@
                         .catch((error) => {
                             throw new Error(error)
                         });
-                })
+                }, { once: true });
             });
         }
     });