public IActionResult Post([FromBody] LanguageDto dto)
 {
     try
     {
         addLanguage.Execute(dto);
         return(StatusCode(201));
     }
     catch (EntityAlreadyExistsException e)
     {
         return(StatusCode(409, new
         {
             Errors = new List <string> {
                 e.Message
             }
         }));
     }
     catch (Exception e)
     {
         return(StatusCode(500, new
         {
             Errors = new List <string> {
                 e.Message
             }
         }));
     }
 }