2.4.2 - Optimization pass

Optimizations

• Recent content list in navbar
• Dashboard
• Caching on content-related queries
• content#index
• Sidebar navigation

Temporary improvements

• disabled image lookups in in_universe_content_lists

Removed

• Removed some files and directories that were no longer being used
• Removed queries related to parts of the UI that are no longer being used
• Temporarily removed image uploads from in_universe_content_list partials

Infrastructure

• Upgraded the DB on Heroku