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/repositories/message-channel/message-channel.module.ts

@@ -0,0 +1,11 @@
+import { Module } from '@nestjs/common';
+
+import { MessageChannelService } from 'src/modules/messaging/repositories/message-channel/message-channel.service';
+import { WorkspaceDataSourceModule } from 'src/engine/workspace-datasource/workspace-datasource.module';
+
+@Module({
+  imports: [WorkspaceDataSourceModule],
+  providers: [MessageChannelService],
+  exports: [MessageChannelService],
+})
+export class MessageChannelModule {}