[Users] GTK3 column headers look weird

[Marco Moock]

Am 18.04.2024 schrieb Dustin Miller <dustbiz at gmail.com>:

> DM: Hey Marco, try going all the way to the right in your view, then
> grab the right side of the far-right column header and move it to the
> left until the view doesn't need the horizontal scroll-bar anymore.
> Then see if things look right.

Works, but the column headers aren't displayed properly.
The scroll bar doesn't move the text nor the borders.

If I scroll to the left, it looks good, but scrolling to the right
makes it look like the screenshot.
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