feat(users): redirect to category after media delete

Introduce a custom `get_success_url` method in the `MediaDeleteView` to redirect users back to the specific category page they were on, upon successfully deleting media. This enhancement improves user experience by maintaining the context of their browsing session, avoiding disorientation that could result from being redirected to a generic page.

quackscape/users/views.py

@@ -170,6 +170,8 @@ class MediaDeleteView(LoginRequiredMixin, TitleMixin, DeleteView):
         except (OriginalMedia.DoesNotExist, AssertionError):
             raise Http404()
 
+    def get_success_url(self):
+        return reverse_lazy("quackscape.users:category", kwargs={"category": self.kwargs["category"]})
 
 class Login(TitleMixin, LoginView):
     title = "Login"