Misc: explorer: Redirect to display page once hb_report run complete

This is as opposed to doing a render partial of the pe list html inside
a javascript escape html construct, which breaks if the pe list html is
long and ugly enough (one of the edge cases in bnc#854060), and is in
any case unnecessarily complex.

Signed-off-by: Tim Serong <tserong@suse.com>