Fix the assets.paths for the tests

Author: jsntv200

Diff for: test/dummy/config/initializers/assets.rb

@@ -5,7 +5,7 @@
 
 # Add additional assets to the asset load path.
 # Rails.application.config.assets.paths << Emoji.images_path
-Rails.application.config.assets.paths << "app/components"
+Rails.application.config.assets.paths << Rails.root.join("app/components")
 
 # Precompile additional assets.
 # application.js, application.css, and all non-JS/CSS in the app/assets