* Fixes an issue with strip menus making duplicate windows (#82055)
## About The Pull Request
Fixes an oversight in #57889, where the strip_menus list is set, but
never accessed, leading to whenever you drag to open the menu, it always
opens a new window.
## Why It's Good For The Game
Noticed this while porting the TGUI strip menu, and I figured I should
fix it here too. From the design of the strippable element, it seems
that this was the original design, but somehow got lost along the way.
## Changelog
🆑
Fix: Opening a mob's strip menu multiple times will now properly update
the window.
/🆑
* Fixes an issue with strip menus making duplicate windows
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Co-authored-by: Contrabang <91113370+Contrabang@users.noreply.github.com>
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