Clean notice after update password + fix addText function

See BT#12323

main/auth/inscription.php

@@ -216,6 +216,7 @@ if ($user_already_registered_show_terms === false) {
         $form->addText(
             'username',
             get_lang('UserName'),
+            true,
             array(
                 'id' => 'username',
                 'size' => USERNAME_MAX_LENGTH,

main/inc/lib/api.lib.php

@@ -7243,6 +7243,12 @@ function api_get_password_checker_js($usernameInputId, $passwordInputId)
             }
         };
         $('".$passwordInputId."').pwstrength(options);
+        
+        $('".$passwordInputId."').on('input', function() {
+            $(this).parent().find('.help-inline').hide();
+            
+        });
+        
     });
     </script>";