Make bisect functionality more prominent #1894

One of the main use cases for Fiddle is making testcase gists for issues in electron/electron.

I always ask people on issues to bisect which version introduced the given issue (about 1–2x per day).

Until recently, when I was bisecting an issue myself, I was always doing this by hand, switching through the model picker manually. It took me months to discover that we have built-in bisect functionality. I first used it a week ago and it is SO GOOD!

We should make that more prominent.