webadmin: fixed edit icons in Setup Host Network dialog

PatternFly patch caused some weird spacing issues with the edit icons/buttons
in Hosts > Networks Interfaces > Setup Host Network dialog. Fixed.

Change-Id: If85fd9ea6a8b20d91bd88e0d8d736a221dff0c71
Signed-off-by: Greg Sheremeta <gshereme@redhat.com>