[Hustle] Hustle slide-in in the middle of the screen

Dear support team,

The Hustle slide-in form is currently being displayed in the middle of the screen, but it should be on the bottom-right :

https://blog.defi-ecologique.com/wp-admin/admin.php?page=hustle_slidein&id=9&section=settings
https://i.postimg.cc/vHyDQjV1/br.png

https://blog.defi-ecologique.com/zoopharmacognosie/
https://i.postimg.cc/1XjWK662/2.png

Could you please help me sort this out ?
Is there a way to specify which div id is the reference point ?

Regards,
Greg