Fix integrations options order (#2204)

# What this PR does

## Which issue(s) this PR fixes

## Checklist

- [ ] Unit, integration, and e2e (if applicable) tests updated
- [ ] Documentation added (or `pr:no public docs` PR label added if not
required)
- [ ] `CHANGELOG.md` updated (or `pr:no changelog` PR label added if not
required)

engine/apps/api/views/alert_receive_channel.py

@@ -187,6 +187,7 @@ class AlertReceiveChannelView(
     @action(detail=False, methods=["get"])
     def integration_options(self, request):
         choices = []
+        featured_choices = []
         for integration_id, integration_title in AlertReceiveChannel.INTEGRATION_CHOICES:
             if integration_id in AlertReceiveChannel.WEB_INTEGRATION_CHOICES:
                 choice = {
@@ -200,10 +201,10 @@ class AlertReceiveChannelView(
                 }
                 # if integration is featured we show it in the beginning
                 if choice["featured"]:
-                    choices = [choice] + choices
+                    featured_choices.append(choice)
                 else:
                     choices.append(choice)
-        return Response(choices)
+        return Response(featured_choices + choices)
 
     @action(detail=True, methods=["put"])
     def change_team(self, request, pk):