[FIX] web_editor: fix attributes missing from cleanForSave

Before this commit:

When we try to add html data in translated email templates then it does not
remove those extra classes from the html code.

After this commit:

Now those extra classes will remove from the html code.

Task-2985072

closes odoo/odoo#103414

Signed-off-by: David Monjoie (dmo) <dmo@odoo.com>

addons/web_editor/static/src/js/backend/QWebPlugin.js

@@ -26,7 +26,8 @@ export class QWebPlugin {
         }
     }
     cleanForSave(editable) {
-        for (const node of editable.querySelectorAll('[data-oe-t-group]')) {
+        for (const node of editable.querySelectorAll('[data-oe-t-group], [data-oe-t-inline], [data-oe-t-selectable], [data-oe-t-group-active]')) {
+            node.removeAttribute('data-oe-t-group-active');
             node.removeAttribute('data-oe-t-group');
             node.removeAttribute('data-oe-t-inline');
             node.removeAttribute('data-oe-t-selectable');