webadmin: refresh button wrapping

- Fixed refresh button wrapping when there is not enough room to fit
  all the buttons.

Change-Id: I1fc13aea7950ab3f4965131dcc2b32e4ea837192
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1163929
Signed-off-by: Alexander Wels <awels@redhat.com>