Fix #5975 (#8335)

* Fix #5975
* Since version 10.3.0, a condition has been added to prevent submenus from activating on hover when in “popup” mode (commit 5615c89).
I don't really understand why this constraint exists. But removing it resolves issue #5975 and aligns with PrimeVue's behaviour.

* little format fix in Slider.js

* Revert format fix in Slider.js

revert from commit b435248

I ran the command "npm run format", but my version of Prettier was not up to date, my bad.

Author: kyybo

components/lib/tieredmenu/TieredMenu.js

@@ -258,7 +258,7 @@ export const TieredMenu = React.memo(
                 return;
             }
 
-            if (dirty && !props.popup) {
+            if (dirty) {
                 onItemChange(event);
             }
         };