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/backend/src/apps/freescout/common/set-base-url.js

@@ -0,0 +1,6 @@
+const setBaseUrl = ($, requestConfig) => {
+  requestConfig.baseURL = $.auth.data.instanceUrl;
+  return requestConfig;
+};
+
+export default setBaseUrl;