New Feature: Find Inactives

[marcustyphoon]

~~welcome to: fun with canvas elements~~

Description

I'm committing the results of playing around with an interactive UI for a Find Inactives script, which provides a (kind of weird, kind of neat) visual for the distribution of last-updated times for all of your followed blogs along with the primary features of helping the user unfollow specific long-inactive blogs if they're near or at the following limit.

Testing steps

Confirm that each UI element functions as expected; I don't have specific tests to list at the moment.

[marcustyphoon]

to be honest, I dunno if I like this better aesthetically, but here's a histogram view that I assume is less confusing