Remove jQuery class from the comment context menu (#30179)

- Switched from jQuery class functions to plain JavaScript
- Tested the comment context menu functionality and it works as before

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Signed-off-by: Yarden Shoham <git@yardenshoham.com>
Co-authored-by: silverwind <me@silverwind.io>

web_src/js/modules/fomantic/dropdown.js

@@ -207,7 +207,7 @@ function attachDomEvents(dropdown, focusable, menu) {
       if (!$item) $item = $(menu).find('> .item.selected'); // when dropdown filters items by input, there is no "value", so query the "selected" item
       // if the selected item is clickable, then trigger the click event.
       // we can not click any item without check, because Fomantic code might also handle the Enter event. that would result in double click.
-      if ($item && ($item[0].matches('a') || $item.hasClass('js-aria-clickable'))) $item[0].click();
+      if ($item?.[0]?.matches('a, .js-aria-clickable')) $item[0].click();
     }
   });