server: Add support for users' avatars in GrahpQL

app/src/components/create_user.rs

@@ -90,6 +90,7 @@ impl CommonComponent<CreateUserForm> for CreateUserForm {
                         displayName: to_option(model.display_name),
                         firstName: to_option(model.first_name),
                         lastName: to_option(model.last_name),
+                        avatar: None,
                     },
                 };
                 self.common.call_graphql::<CreateUser, _>(

app/src/components/user_details_form.rs

@@ -234,6 +234,7 @@ impl UserDetailsForm {
             displayName: None,
             firstName: None,
             lastName: None,
+            avatar: None,
         };
         let default_user_input = user_input.clone();
         let model = self.form.model();