moving delete button
(cherry picked from commit 2413278c6071dfa2d237f1b641d81c87315f9393)
Use Racket navbar on pkgs. and have navbar link to pkgs.

Open question: Where does link to Planet go? Sam's new design has a natural place, but on the old site... it's not clear, community?
(cherry picked from commit 490e21ff077c07df3bfc3f58e73d35ac0da55d35)