better UI for opening bugs in the app

[fitzgen]

Right now, it opens a new chrome-less window. Maybe better to just open them up in Firefox? Or to do a slide-y sideways thing?

[gijsk]

Links with target="_blank" are meant to open in the regular browser, rather than the app. The links should already have target="_blank" on them (and do when I inspect them in my browser window, but I can't inspect the app...). I don't understand why this isn't already working; it works in a simple test app that has a single link.