feat: refactor folder structure (#4498)

* feat: wip refactor folder structure

* Fix

* fix position

---------

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

packages/twenty-server/src/business/modules/business.module.ts

@@ -0,0 +1,11 @@
+import { Module } from '@nestjs/common';
+
+import { CalendarModule } from 'src/business/modules/calendar/calendar.module';
+import { MessagingModule } from 'src/business/modules/message/messaging.module';
+
+@Module({
+  imports: [MessagingModule, CalendarModule],
+  providers: [],
+  exports: [],
+})
+export class BusinessModule {}