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/engine/integrations/environment/environment.module-definition.ts

@@ -0,0 +1,8 @@
+import { ConfigurableModuleBuilder } from '@nestjs/common';
+
+export const { ConfigurableModuleClass, MODULE_OPTIONS_TOKEN } =
+  new ConfigurableModuleBuilder({
+    moduleName: 'Environment',
+  })
+    .setClassMethodName('forRoot')
+    .build();