Add icons: Fullscreen/exit fullscreen

[davewhitley]

Ideas:

[davewhitley]

@kellychoffman any plans for adding this to the editor?

[kellychoffman]

No plans.

Not to say that it won't ever happen, but its not planned.

[melchoyce]

Have a need for this now! We need a "full screen" icon for the Customizer:

This would replace ( < ) Collapse

[folletto]

+1

I think that works. :)

[davewhitley]

I think the one @melchoyce made works well. Do we need an exit fullscreen icon?

[melchoyce]

Yeah, an opposite one would be good. What do you think of this?