Bug Fixes - Fluid Topics - 5.2

Fixes an issue where a failed configuration import would be marked as successful in the Import configuration menu.

Fixes a bug of the modal where the borders of the box-shadow were not following the border radius of the modal.

Fixes an issue where an incorrect message would be displayed when an error occurred using the Import configuration menu.

Fixes an issue where the Import configuration feature would be slow when importing many languages customization.

Fixes an issue where the closing event of a Floating menu nested in another Floating menu would close both menus at the same time.