Adds profile media tab

[estrattonbailey]

Depends on #1141 for the @atproto/api@0.6.0 integration.

Adds a "Media" tab to the profile screen, and replaces the client-side filtering of replies with a server-side filter. Further UI work for this view will come as a follow-up.

Screen.Recording.2023-08-08.at.3.10.56.PM.mov

[pfrazee]

Okay this is looking great, two things we need address:

1. Switching tabs on mobile is a bit screwy. The loading state causes the spinner to show up briefly, jogging the UI a bit. We do need to indicate the loading state. There's a couple ways to handle this; it might be worth having 3 different feed models rather than swapping out the one.
2. Mobile now has the ability to overflow the tab headers (smaller devices and/or larger accessibility text). We can fix that either by using a scrollview or by trying to simplify the tab names (eg "Post & replies" -> "w/Replies")

[pfrazee]

🚀 nice work!