[Bug] wxGUI:g.gui.iclass: training and preview toolbars are not placed correctly after switching from fullscreen mode

[lindakarlovska]

Describe the bug
When you switch to full-screen mode, everything is ok. The problem occurs when you press F11 again and go back to the normal mode. Both toolbars are placed differently than they should be (than they previously were).

Wrong behavior:
Toolbars are placed at the bottom above each other.

Expected behavior:
Both displays have their own toolbars.

System description (please complete the following information):

• GRASS GIS version [master]

[tmszi]

This error doesn't appear in the wxPython 4.1.1 version.

GRASS nc_basic_spm_grass7/PERMANENT:~ > python -c "import sys, wx; print(sys.version); print(wx.version())"
3.9.6 (default, Aug  8 2021, 07:26:00) 
[GCC 10.3.0]
4.1.1 gtk3 (phoenix) wxWidgets 3.1.5