Write access needed for screenshot

[Tobias Platen]

I tried to upload a screenshot for beepsaber, which failed because I
don't have permissions to upload files. I the browser I got:

You do not have permission to do that, for the following reasons:

You do not have permission to edit pages in the File namespace.
You do not have permission to edit pages in the File namespace.

So please grant me permission to upload a screenshot.

Tobias