added pop up view ingredients + warnings for delete removed the star import

server/src/main/java/server/api/IngredientController.java

@@ -184,7 +184,7 @@ public class IngredientController {
                     return ResponseEntity.ok(saved);
                 })
                 .orElseGet(() ->
-                        ResponseEntity.status(409)
+                        ResponseEntity.status(HttpStatus.CONFLICT)
                                 .body("ingredient name already exists"));
 
     }