dashboard: Apply dark style to archivebot.com.

dashboard.at.ninjawedding.org is an internal name.
dashboard: Ensure dark style applies to headers.
dashboard: Try different monospace fonts for log window.

I like the way Essential Pragmata Pro and Inconsolata look on my screen.
Pragmata Pro would probably also do fine, but I don't know its name
(maybe just "PragmataPro"?)

I don't know of a good Windows typeface...Consolas, perhaps?