Webadmin: Context menu "accounts" does not appear not on the right place

[infrequently]

Hi there,
if I use "accounts"-page in the webadmin the context menu shows does not appear on the right place, if I scroll down. The context menu shows too low or out-of-sight. See screenshot below -> I clicked on the first "..." Button.

Everything is fine as long as I do not scroll down on the "accounts"-page.

I can reproduce this behavior with Firefox and Opera.

Using stalwart-mail v091, docker, latest webadmin
I searched for an issue like that, but did not find any.

[mdecimus]

Fixed.