Menu items under File do not open dialogs, but toolbar buttons work
#### Summary:
In the development version of Inkscape, several menu items under **File** do nothing when clicked. Specifically:
* File → Document Properties
* File → Export
* File → Document Resources
Clicking these items produces no visible effect (no dialog opens).
However, the **toolbar buttons / docked UI buttons** for:
* Document Properties
* Export
_do_ work correctly and open the expected dialogs.
This suggests the issue is limited to the File menu actions, not the dialogs themselves.
#### Steps to reproduce:
1. Launch Inkscape (development build)
2. Open any document (new or existing)
3. Click File → Document Properties\
→ nothing happens
4. Click the Document Properties button in the toolbar\
→ dialog opens correctly
(Same behavior for Export and Document Resources.)
#### What happened?
Menu items do nothing.
#### What should have happened?
Menu items should open the same dialogs as their corresponding toolbar buttons.
Sample attachments:
#### Version info
```
Inkscape 1.5-dev (648b8fe, 2026-02-03)
Compile (Run)
GLib version: 2.83.4
GTK version: 4.20.2 (4.20.2)
glibmm version: 2.83.1
gtkmm version: 4.20.0
libxml2 version: 2.11.5
libxslt version: 1.1.35
Cairo version: 1.18.2 (1.18.2)
Pango version: 1.56.1 (1.56.1)
HarfBuzz version: 10.2.0 (10.2.0)
Poppler version: 24.02.0
OS version: macOS 26.1 (25B78) arm64
```
issue