feat: add freescout app with new event trigger (#2287)

* added FreeScout plugin

* docs: add freescout in sidebar

* docs(freescout): add missing app icon

* refactor(freescout): rename filter as eventType

---------

Co-authored-by: Ali BARIN <ali.barin53@gmail.com>

packages/docs/pages/apps/freescout/triggers.md

@@ -0,0 +1,13 @@
+---
+favicon: /favicons/freescout.svg
+items:
+  - name: New event
+    desc: Triggers when a new event is created. The supported events are conversation created, conversation assigned, conversation status updated, conversation moved, conversation deleted, conversation deleted forever, conversation restored from deleted folder, customer replied, agent replied, note added, customer created, customer updated.
+
+---
+
+<script setup>
+  import CustomListing from '../../components/CustomListing.vue'
+</script>
+
+<CustomListing />