[BUG] Q vector viewer 3D view zooming causes plots to change size

[ChiCheng45]

Background information
Platform string: Windows-10-10.0.26200-SP0
Python 3.11.15 (CPython), Mar 5 2026 16:36:00
MDANSE version: 2.0.1.post33+git.c7fc56aa.dirty
MDANSE_GUI version: 2.0.1.post33+git.c7fc56aa.dirty
CPU architecture: x86_64

What were you doing?
In the vector angle statistics, if you zoom in or out in the 3D plot.
What went wrong?
All plots begin to resize; it should not do this. Also, a similar issue if you resize the window itself.

Additional details (optional)