Describe the bug
When opening an Excalidraw whiteboard a second time in the same browser tab, the embedded view is not properly displayed. There are emty borders that halve the available space, and the mouse cursor is shifted making the editor not usable.

To Reproduce
Steps to reproduce the behavior:

1. Open CLoudreve page.
2. Create or open Excalidraw whiteboard.
3. Close Excalidraw whiteboard.
4. Create or open Excalidraw whiteboard.
5. The whiteboard is not properly displayed from the second time onwards.

Expected behavior
The view should be correctly displayed even when opening Excalidraw whiteboards more than one time.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

OS: Windows 11
Browser Chrome, Firefox
Version Cloudreve 4.9.2
Smartphone (please complete the following information):

Additional context
The issue temporarily goes away by refreshing the browser tab.