[Feature Request] Add a right-click option to create desktop shortcut

**Cosmic-app-library version:**
0.1.0\~1727881753\~22.04\~9a41088

**Issue/Bug description:**
Now that desktop icons have dropped, it would be nice if we could add shortcuts directly from the applibrary.

**Steps to reproduce:**
N/a
**Expected behavior:**
N/a
**Other notes:**
N/a