loader does not support dark mode

[dewanshDT]

Details about the bug:

the loader background is not themified, it is light even if the preferred theme is dark

• Web browser and version: Microsoft Edge
• Operating System: Windows 11
• Steps to reproduce this: just set the preferred theme to dark and reload the page

please assign this to me, I'd like to fix this.

[dewanshDT]

🎉done!