Backlog Video - Filter UI and Sub-Platforms (Patreon)

I took a break from account/admin stuff recently to add the Sub-Platforms feature. This necessitated a new filter option and things cascaded a bit from there.

There was a patron request for more videos talking about design decisions a while back and this seemed like a good fit for it. Enjoy!

Note, this change is not live on the demo site yet. Still have more admin work to do but this was a nice change of pace. I'll check back in with you soon.