Update jQuery to 3.7 and fix admintests (#5868)

* jQuery: Migrate to `.on()`, `.off()`, `.trigger()`

This avoids methods that are deprecated in newer versions of jQuery.

* jQuery: avoid `.removeAttr`, prefer `.prop`

* helper.edit: wait up to 10 seconds for ACCEPT_COMMIT

* Chat: disabled attribute is boolean

* Chat: avoid inline onclick handler to support jQuery 3.4+

* jQuery: update to version 3.6.0

* Update to 3.7

* Removed deprecated event.

* Revert change to focus on padeditor.ace

---------

Co-authored-by: webzwo0i <webzwo0i@c3d2.de>

src/static/js/pad_utils.js

@@ -224,7 +224,7 @@ const padutils = {
     // It is work on Windows (IE8, Chrome 6.0.472), CentOs (Firefox 3.0) and Mac OSX (Firefox
     // 3.6.10, Chrome 6.0.472, Safari 5.0).
     if (onEnter) {
-      node.keypress((evt) => {
+      node.on('keypress', (evt) => {
         if (evt.which === 13) {
           onEnter(evt);
         }
@@ -232,7 +232,7 @@ const padutils = {
     }
 
     if (onEscape) {
-      node.keydown((evt) => {
+      node.on('keydown', (evt) => {
         if (evt.which === 27) {
           onEscape(evt);
         }
@@ -299,7 +299,7 @@ const padutils = {
       }
       field.removeClass('editempty');
     });
-    field.blur(() => {
+    field.on('blur', () => {
       if (!field.val()) {
         clear();
       }
@@ -313,11 +313,11 @@ const padutils = {
     if (value) {
       $(node).attr('checked', 'checked');
     } else {
-      $(node).removeAttr('checked');
+      $(node).prop('checked', false);
     }
   },
   bindCheckboxChange: (node, func) => {
-    $(node).change(func);
+    $(node).on('change', func);
   },
   encodeUserId: (userId) => userId.replace(/[^a-y0-9]/g, (c) => {
     if (c === '.') return '-';