Update "requests" admin

[0x213F]

Summary

The requests admin page keeps a data log of every request sent through Python code. For example, the Django server calls Spotify servers to search for results. Whatever Spotify sends back to us, we log. That log can be accessed via the requests admin page.

(for localhost)
http://localhost:8000/admin/networking/request/

This is the most commonly used admin page because it is used by developers to debug requests. It would be really nice if the page looked a little cleaner than it does now :)

Idea no.1

Add search.

Idea no.2

Add columns. In order to see what columns you could display, look at the request model. See what fields are on the request model, then try displaying relevant ones.

Idea ???

Those are the 2 high value things that I would like on the admin. If there is anything else you'd like to add, go for it (but totally optional).