fix UserSessionsController action validation error

Author: cooperka

config/environments/development.rb

@@ -119,8 +119,9 @@
   # Uncomment if you wish to allow Action Cable access from any origin.
   # config.action_cable.disable_request_forgery_protection = true
 
-  # Raise error when a before_action's only/except options reference missing actions.
-  config.action_controller.raise_on_missing_callback_actions = true
+  # Don't raise error when a before_action's only/except options reference missing actions.
+  # (for example, UserSessionsController has no #index, but that's an error with this enabled)
+  config.action_controller.raise_on_missing_callback_actions = false
 
   # Apply autocorrection by RuboCop to files generated by `bin/rails generate`.
   # config.generators.apply_rubocop_autocorrect_after_generate!

config/environments/test.rb

@@ -74,6 +74,7 @@
   # Annotate rendered view with file names.
   # config.action_view.annotate_rendered_view_with_filenames = true
 
-  # Raise error when a before_action's only/except options reference missing actions.
-  config.action_controller.raise_on_missing_callback_actions = true
+  # Don't raise error when a before_action's only/except options reference missing actions.
+  # (for example, UserSessionsController has no #index, but that's an error with this enabled)
+  config.action_controller.raise_on_missing_callback_actions = false
 end