modules/admin-full: slightly change html of diagnostics page

git-svn-id: http://svn.luci.subsignal.org/luci/trunk@9589 ab181a69-ba2e-0410-a84d-ff88ab4c47bc
themes/bootstrap: another round of css fixes

git-svn-id: http://svn.luci.subsignal.org/luci/trunk@9590 ab181a69-ba2e-0410-a84d-ff88ab4c47bc