[FIX] web_editor: update toolbar on list uncheck.

Before this commit:

-With selection on checklist, on unchecking it toolbar is not updating.

After this commit:

-Now toolbar is updated when list unchecks.

task-3504398

closes odoo/odoo#136541

X-original-commit: 2cf3dd5988914a09bbc2098eccb3c8419995e120
Signed-off-by: David Monjoie (dmo) <dmo@odoo.com>

addons/web_editor/static/src/js/editor/odoo-editor/src/OdooEditor.js

@@ -4433,6 +4433,9 @@ export class OdooEditor extends EventTarget {
                 toggleClass(node, 'o_checked');
                 ev.preventDefault();
                 this.historyStep();
+                if (!document.getSelection().isCollapsed) {
+                    this._updateToolbar(true);
+                }
             }
         }