Errors => Update error handling and sending

ExpressAPI/prisma/seed.ts

ExpressAPI/src/helpers/DojoValidators.ts

ExpressAPI/src/helpers/GlobalHelper.ts

ExpressAPI/src/managers/AssignmentManager.ts

ExpressAPI/src/managers/GitlabManager.ts

ExpressAPI/src/middlewares/ClientVersionCheckerMiddleware.ts

ExpressAPI/src/middlewares/SecurityMiddleware.ts

ExpressAPI/src/routes/AssignmentRoutes.ts

ExpressAPI/src/routes/ExerciseRoutes.ts