Refactor backend folder structure (#4505)

* Refactor backend folder structure

Co-authored-by: Charles Bochet <charles@twenty.com>

* fix tests

* fix

* move yoga hooks

---------

Co-authored-by: Charles Bochet <charles@twenty.com>

packages/twenty-server/src/modules/messaging/utils/get-domain-name-from-handle.util.ts

@@ -0,0 +1,9 @@
+import psl from 'psl';
+
+export const getDomainNameFromHandle = (handle: string): string => {
+  const wholeDomain = handle?.split('@')?.[1] || '';
+
+  const { domain } = psl.parse(wholeDomain);
+
+  return domain || '';
+};