Inset shadow effect does not work
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#### Summary:
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"Inset shadow" effect does not work
`share/extensions/inset_shadow.py` is using the wrong class, `Edge3D` instead of `InsetShadow`.
```
Inkscape 1.4-dev (dbcff38720, 2023-06-14, custom)
GLib version: 2.76.3
GTK version: 3.24.38
glibmm version: 2.66.6
gtkmm version: 3.24.7
libxml2 version: 2.9.13
libxslt version: 1.1.38
Cairo version: 1.16.0
Pango version: 1.50.14
HarfBuzz version: 7.3.0
OS version: macOS 13.4 (22F66) arm64
```
issue