[FIX] board: action_id not available in modal

The  favorites menu is always added in search views. Then the
menu "add to dashboard" is always added even if it is triggered from
a form view in a modal. In this case, the action_id is not available
in the object FavoriteMenu.
If the action_id is not available, the menu "add to dashboard" is
hidden.

opw:692023

addons/board/static/src/js/dashboard.js

@@ -347,6 +347,9 @@ core.form_tag_registry
 FavoriteMenu.include({
     start: function () {
         var self = this;
+        if(this.action_id === undefined) {
+            return this._super();
+        }
         var am = this.findAncestor(function (a) {
             return a instanceof ActionManager;
         });