Cosmetic issue in empty storage dialog box

[TjerkNan]

Describe the bug On firefox and chrome on mac, when you 'empty storage', the dialog box shows a vertical bar at the right which is not visible in safari.

This issue is really minor.

To Reproduce Steps to reproduce the behavior:

1. Put some file in storage
2. Press empty storage
3. Observe dialog box

Expected behavior Visual consistency across browsers

Screenshots

Desktop (please complete the following information):

• safari = ok
• firefox = not ok
• chrome = not ok

[mellelieuwes]

@TjerkNan Can't reproduce the issue 😬