Added plug integration

[Cbturtle2]

Inserts plug below top bar

[RamZallan]

Yeah putting it in the nav will probably show it on every page. Idk if much convo has happened on floor about this, but I'd recommend just showing it on the view_dir template, which will show it when browsing folders, but not when viewing individual files.

[Cbturtle2]

The latest commit should fix both of these problems