warrior ui: Change broadcast msg indicator to darkgoldenrod

Indicator blends more into the UI.

Following joepie91 suggestion that the indicator shouldn't be a thing of
hate.
warrior ui: Decrease header padding. Add .projectBroadcastMessage to styles.

Re: ArchiveTeam/seesaw-kit#8

Might as well use the header space for project announcements since the
scripts auto update.

Scripts simply use:
<p class=".projectBroadcastMessage">Message</p>