Add exceptions for metadata modules (#6070)

Class exception for each metadata module + handler to map on graphql
error

TODO left :
- find a way to call handler on auto-resolvers nestjs query (probably
interceptors)
- discuss what should be done for pre-hooks errors
- discuss what should be done for Unauthorized exception

packages/twenty-server/src/engine/utils/graphql-errors.util.ts

@@ -183,3 +183,11 @@ export class TimeoutError extends BaseGraphQLError {
     Object.defineProperty(this, 'name', { value: 'TimeoutError' });
   }
 }
+
+export class InternalServerError extends BaseGraphQLError {
+  constructor(message: string) {
+    super(message, ErrorCode.INTERNAL_SERVER_ERROR);
+
+    Object.defineProperty(this, 'name', { value: 'InternalServerError' });
+  }
+}