Allow users to set login shell in profile

locale/en_US/profile.locale.js

@@ -51,4 +51,7 @@ module.exports = exports = {
 
     mfa_1: 'MFA is a good-practice security measure that requires you to provide a second factor of identification when you sign in from a service or device that makes use of APP_NAME.',
     mfa_2: 'Once enabled, APP_NAME will prompt you to enter a code when you sign-in with the APP_NAME web interface from a new device. It will also require you to append the code to your password when signing in to a service that uses APP_NAME as a backend.',
+
+    advanced_header: 'Advanced',
+    advanced_shell: 'Default Login Shell',
 }