fix(home): remove extra margins, causing horizontal scroll
fix(home): remove extra margins, causing horizontal scroll

fixes https://github.com/openshiftio/openshift.io/issues/1876

fabric8-ui/fabric8-ui,fabric8io/fabric8-ui,fabric8io/fabric8-ui,fabric8-ui/fabric8-ui,fabric8io/fabric8-ui,fabric8-ui/fabric8-ui,fabric8-ui/fabric8-ui,fabric8io/fabric8-ui,fabric8io/fabric8-ui,fabric8-ui/fabric8-ui