Cannot resize window on the right side

[ell1e]

Describe the bug

When installing geopard from flathub and using it using KDE Desktop or KDE Plasma mobile, the right-hand side of the window cannot be dragged to resize it. Strangely enough, on the left side it works. I assume this might be a GTK related issue, but I don't have any other GTK app that behaves like this.

To Reproduce

1. Use KDE Plasma Desktop or KDE Plasma Mobile (docked mode), version 6.4.x
2. Install and launch geopard
3. Try to resize the geopard window by grabbing the right side of it with the mouse

Expected behavior

The window should be resizable using all four edges.

Screenshots

I might add one later

Software info (please complete the following information):

• OS: postmarketOS
• Geopard's Version 1.6.0 (flathub, ARM64)

Additional context

[ell1e]

After some more experimentation, I think the issue is the scrollbar. When the mouse is near the scrollbar but clearly either on the edge of the window or even outside the window toward the right, then clicking will still activate the scrollbar rather than resizing the window as expected.