Enhance validation in PersonEdit: Introduce hasValidationError and validationError helpers for form inputs. Improve error feedback for fields such as firstName, lastName, gender, and others. Refactor postPerson to handle validation exceptions and map errors to specific fields. Update related methods, styles, and API error type definitions.

src/Bundle/ChillMainBundle/Resources/public/lib/api/apiMethods.ts

@@ -117,9 +117,9 @@ export class ValidationException<
  * Check that the exception is a ValidationExceptionInterface
  * @param x
  */
-export function isValidationException(
+export function isValidationException<M extends Record<string, Record<string, unknown>>>(
   x: unknown,
-): x is ValidationExceptionInterface<Record<string, Record<string, unknown>>> {
+): x is ValidationExceptionInterface<M> {
   return (
     x instanceof ValidationException ||
     (typeof x === "object" &&