refactor: simplify code

src/route/contact/errors.rs

@@ -89,15 +89,16 @@ impl std::fmt::Display for ContactError {
 /// If no specific field can be identified, returns a generic `ValidationError`.
 impl From<ValidationErrors> for ContactError {
     fn from(value: ValidationErrors) -> Self {
-        if validator::ValidationErrors::has_error(&Err(value.clone()), "name") {
+        let errors = value.field_errors();
+        if errors.contains_key("name") {
             return Self::ValidationNameError("backend.contact.errors.validation.name".to_owned());
         }
-        if validator::ValidationErrors::has_error(&Err(value.clone()), "email") {
+        if errors.contains_key("email") {
             return Self::ValidationEmailError(
                 "backend.contact.errors.validation.email".to_owned(),
             );
         }
-        if validator::ValidationErrors::has_error(&Err(value), "message") {
+        if errors.contains_key("message") {
             return Self::ValidationMessageError(
                 "backend.contact.errors.validation.message".to_owned(),
             );