Add can_resolve_censorship permission and uncensor feature

- Add custom permission to Photo model
- Add PhotoUncensorView POST endpoint to restore private photos
- Show private photos to users with can_resolve_censorship
- Add restore button in lightgallery toolbar for censored photos

photologue/models.py

@@ -553,6 +553,9 @@ class Photo(ImageModel):
         get_latest_by = "date_added"
         verbose_name = _("photo")
         verbose_name_plural = _("photos")
+        permissions = [
+            ("can_resolve_censorship", "Can resolve censorship (restore private photos)"),
+        ]
 
     def __str__(self):
         return self.title