main: Rebrand the app

We're going to add other annoying behaviors to this demo, so let's give
it a proper brand and identity.
main: Add a "Steal Focus" button

That steals focus from whatever the user was looking at before.
main: Add a modeline
Turn on debugging
Turn on errors
Draw on Firefox

Add a new really annoying mode which spams RealPlayer logos on top of
the current Firefox window.
main: Redesign

Gotta increase brand presence and improve synergy.
main: Rename "Record" button to "Keylog"
main: Remove the giant set of declarations