Showcase ticket cleanup

[kenslachtajr]

Description

• [ ] Add a ticket in showcase for 404
• [ ] Add this to the blog tickets: https://docs.google.com/document/d/12k-VJap7GiAjQGi8CNKroPeubxQbToD4RIfPghifHow/edit?usp=sharing
• [ ] Filters are different for each page (repo, pull request, issue) so we should have a ticket for each page to make sure we have the filter implemented
• [ ] Add information in the ticket (maybe adam, chris, dane) what is really needed in the tickets and NOT just what to do.. ex Auth should not just make auth work, but it is supposed to be really showcase midlleware
• [ ] Add unit test in each ticket
• [ ] Add Repo (for writing and code) on blog post into the tickets
• [ ] Add ticket on adding google analytics on the showcases