Add Bullet gem for dev & fix N+1 queries issues for core index actions

config/environments/development.rb

@@ -71,4 +71,11 @@ Rails.application.configure do
 
   # Apply autocorrection by RuboCop to files generated by `bin/rails generate`.
   # config.generators.apply_rubocop_autocorrect_after_generate!
+
+  config.after_initialize do
+    Bullet.enable = true
+    Bullet.alert = true
+    Bullet.console = true
+    Bullet.rails_logger = true
+  end
 end