Use bootstrap-modal for single-calc.

templates/modals/add_player.html

@@ -41,8 +41,6 @@
         const homeClanList = document.getElementById('home-clan');
         const oppClanList = document.getElementById('opponent-clan');
 
-        const spinner = '<span class="spinner-border spinner-border-sm me-2" role="status"></span>Lade Spielerdaten...'
-
         function validateInput() {
             if (playerName.value.length < 1) {
                 playerName.classList.add('is-invalid');
@@ -59,9 +57,6 @@
 
                 const clanId = parseInt(selectedClan.value);
 
-                submitButton.innerHTML = spinner;
-                submitButton.disabled = true;
-
                 fetch("/player", {
                     method: "POST",
                     body: JSON.stringify({
@@ -93,9 +88,6 @@
                     }).catch((error) => {
                         errorDiv.innerText = error.message;
                         errorDiv.style.display = 'block';
-                    }).finally(() => {
-                        submitButton.innerHTML = 'Hinzufügen';
-                        submitButton.disabled = false;
                     });
             }
         }