add mobile ICE settings reset

public/app.js

@@ -2074,10 +2074,20 @@ $('#ice-cancel').onclick = () => $('#modal-backdrop').classList.add('hidden');
 $('#modal-backdrop').onclick = (ev) => {
   if (ev.target === $('#modal-backdrop')) $('#modal-backdrop').classList.add('hidden');
 };
-$('#ice-reset').onclick = () => {
+function resetIceSettings(reload = false) {
   localStorage.removeItem(LS_ICE);
   $('#override-enabled').checked = false;
-  fetchIce().then((server) => { $('#ice-json').value = JSON.stringify(server, null, 2); });
+  fetchIce().then((server) => {
+    $('#ice-json').value = JSON.stringify(server, null, 2);
+    if (reload) location.reload();
+  }).catch(() => {
+    if (reload) location.reload();
+  });
+}
+$('#ice-reset').onclick = () => resetIceSettings();
+$('#btn-reset-ice-mobile').onclick = () => {
+  toast('Resetting saved ICE settings…', 'ok');
+  resetIceSettings(true);
 };
 $('#ice-save').onclick = () => {
   const enabled = $('#override-enabled').checked;