Unable to specify filename of export - Snap only

Summary:

... I understand this issue is probably unique to Linux users who have installed Inkscape from a Snap. Users are unable to specify a filename when doing an export to png or jpg

This issue has been discussed in two different topics in the Inkscape Beginners forum. In both topics it is pointed out that it works OK if you stop using the Snap method of install.

Steps to reproduce:

• Install Inkscape using a Linux Snap.
• open Inkscape
• open a drawing
• select part of the drawing to export
• click File -> Export
• Try to type a filename for the export

What happened?

...

• The box for entering a filename is greyed out, it isn't possible to enter a filename

What should have happened?

...

• It should be possible to specify the required filename for the exported file

Sample attachments:

Version info

~$ inkscape --debug-info Gtk-Message: 17:38:49.911: Failed to load module "canberra-gtk-module" Gtk-Message: 17:38:49.912: Failed to load module "canberra-gtk-module"

Inkscape 1.3.1 (9b9bdc1480, 2023-11-25, custom)
GLib version:     2.72.4
GTK version:      3.24.33
glibmm version:   2.66.2
gtkmm version:    3.24.5
libxml2 version:  2.9.13
libxslt version:  1.1.34
Cairo version:    1.16.0
Pango version:    1.50.6
HarfBuzz version: 2.7.4

OS version:       Ubuntu Core 22

The Snap file appears to be version 1.3.1 However when installed, clicking Help->About Inkscape displays a graphic saying 1.3.2