Show correct error message if chosen password is too long (#17082)

* Add correct error message for exceeding max length on password confirmation field

* Code style fixes

app/javascript/packs/public.js

@@ -120,7 +120,9 @@ function main() {
     delegate(document, '#registration_user_password_confirmation,#registration_user_password', 'input', () => {
       const password = document.getElementById('registration_user_password');
       const confirmation = document.getElementById('registration_user_password_confirmation');
-      if (password.value && password.value !== confirmation.value) {
+      if (confirmation.value && confirmation.value.length > password.maxLength) {
+        confirmation.setCustomValidity((new IntlMessageFormat(messages['password_confirmation.exceeds_maxlength'] || 'Password confirmation exceeds the maximum password length', locale)).format());
+      } else if (password.value && password.value !== confirmation.value) {
         confirmation.setCustomValidity((new IntlMessageFormat(messages['password_confirmation.mismatching'] || 'Password confirmation does not match', locale)).format());
       } else {
         confirmation.setCustomValidity('');
@@ -132,7 +134,9 @@ function main() {
       const confirmation = document.getElementById('user_password_confirmation');
       if (!confirmation) return;
 
-      if (password.value && password.value !== confirmation.value) {
+      if (confirmation.value && confirmation.value.length > password.maxLength) {
+        confirmation.setCustomValidity((new IntlMessageFormat(messages['password_confirmation.exceeds_maxlength'] || 'Password confirmation exceeds the maximum password length', locale)).format());
+      } else if (password.value && password.value !== confirmation.value) {
         confirmation.setCustomValidity((new IntlMessageFormat(messages['password_confirmation.mismatching'] || 'Password confirmation does not match', locale)).format());
       } else {
         confirmation.setCustomValidity('');