Remove double header background color in dashboard
Remove double header background color in dashboard

It seems commit 9e4503591bb93d0a40661d50e55d038d4c50ab8d intended the background to be `grey-100` but `white` was still left in. I removed white to keep the original intent. The resulting color displayed in the browser was white, so maybe it should be `white` instead of `grey-100`.
material-components/material-components-web,iamrudra/material-design-lite,anton-kachurin/material-components-web,Endika/material-design-lite,iamrudra/material-design-lite,thunsaker/material-design-lite,rohanthacker/material-design-lite,stealba/mdl,tradeserve/material-design-lite,stealba/mdl,thunsaker/material-design-lite,alisterlf/material-design-lite,2947721120/material-design-lite,dgrubelic/material-design-lite,google/material-design-lite,pudgereyem/material-design-lite,tschiela/material-design-lite,rrenwick/material-design-lite,tschiela/material-design-lite,pgbross/material-components-web,material-components/material-components-web,sbrieuc/material-design-lite,i9-Technologies/material-design-lite,dgrubelic/material-design-lite,Yizhachok/material-components-web,material-components/material-components-web,hebbet/material-design-lite,i9-Technologies/material-design-lite,mattbutlar/mattbutlar.github.io,hebbet/material-design-lite,jermspeaks/material-design-lite,2947721120/material-design-lite,Kekanto/material-design-lite,anton-kachurin/material-components-web,pgbross/material-components-web,jermspeaks/material-design-lite,rohanthacker/material-design-lite,rrenwick/material-design-lite,pudgereyem/material-design-lite,tradeserve/material-design-lite,google/material-design-lite,sbrieuc/material-design-lite,Endika/material-design-lite,Yizhachok/material-components-web,alisterlf/material-design-lite,Kekanto/material-design-lite