[Feat] Make location wizard GUI windows resizable

[neteler]

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Is your feature request related to a problem? Please describe.

Some location wizard GUI windows are not resizable (see screenshot below).

Describe the solution you'd like

If possible, all location wizard GUI windows should be resizable.

Additional context

This screenshot illustrates an example where the user quite likely wants to resize the window to avoid scrolling (but the size is static):

To reproduce: create a new location with the GUI, use EPSG:3035.

[tmszi]

Seems, the wxGUI Location wizard windows is resizable (tested on the dwm and Gnome but it depend on the window manager and OS platform). Under OS MS Windows Location wizard window is not resizable. What kind of window manager do @neteler use, please?

Resized wxGUI Location wizard window on the GNU/Linux OS platform and dwm window manager:

[neteler]

What kind of window manager do @neteler use, please?

I use XFCE on Fedora 35.

[tmszi]

Seems there is some issue with resizing window (Location wizard dialog) under Xfce Desktop Environment, Xwfm4 display manager (tested on GNU/Linux Mint 20.3 Una Xfce version)

Additional context When I change display manager (Desktop settings) from Xfwm4 to Metacity, resizing Location wizard dialog window working as expected.