feat: Add nemo-python (#37)

Needed for Nemo file manager Python extension integration.

Also needed for popular GSConnect extension, for "Send to mobile device" context menu.

Issue: ublue-os/main#394

packages.json

@@ -43,6 +43,7 @@
                 "nemo-fileroller",
                 "nemo-image-converter",
                 "nemo-preview",
+                "nemo-python",
                 "nm-connection-editor",
                 "paper-icon-theme",
                 "pipewire-alsa",