GRN2-118: Create a setting to require authentication to join a room (#541)

* Create a setting to require authentication to join a room

* Apply comments

app/helpers/admins_helper.rb

@@ -35,6 +35,10 @@ module AdminsHelper
     registration_method == Rails.configuration.registration_methods[:approval]
   end
 
+  def room_authentication_required
+    Setting.find_or_create_by!(provider: user_settings_provider).get_value("Room Authentication") == "true"
+  end
+
   def registration_method_string
     case registration_method
     when Rails.configuration.registration_methods[:open]