feat: add custom navigation link to org landing page (#569)

* feat: custom navbar UI complete

* chore: added translations

* fear: attending to reviews

* add orgname to org landing page

---------

Co-authored-by: Rotimi Best <best@classroomio.com>

apps/backend/src/utils/genUniqueId.ts

@@ -0,0 +1,3 @@
+export default function genUniqueId(): string {
+  return Date.now().toString(36) + Math.random().toString(36).substr(2);
+}