Update error-handling, show underprivileged notification error

backend/src/controllers/v2/workspaceController.ts

@@ -551,7 +551,7 @@ export const addMachineToWorkspace = async (req: Request, res: Response) => {
   const hasRequiredPrivileges = isAtLeastAsPrivilegedWorkspace(permission, rolePermission);
   
   if (!hasRequiredPrivileges) throw ForbiddenRequestError({
-      message: "Failed to add a more privileged MI to workspace"
+      message: "Failed to add a more privileged MI to project"
   });
 
   let customRole;

backend/src/middleware/requestErrorHandler.ts

@@ -39,8 +39,9 @@ export const requestErrorHandler: ErrorRequestHandler = async (
 
   Sentry.captureException(error);
 
-  delete (<any>error).stacktrace // remove stack trace from being sent to client
-  res.status((<RequestError>error).statusCode).json(error); // revise json part here
+  res.status((<RequestError>error).statusCode).send(
+    await error.format(req)
+  );
 
   next();
 };

backend/src/utils/requestError.ts

@@ -53,9 +53,10 @@ export default class RequestError extends Error {
         ){
         
         super(message)
-        this._logLevel = logLevel || LogLevel.INFO
+        this._logLevel = logLevel || LogLevel.INFO;
         this._logName = LogLevel[this._logLevel];
-        this.statusCode = statusCode
+        this.statusCode = statusCode;
+        this.message = message;
         this.type = type
         this.context = context || {}
         this.extra = []