fix dash height (#4987)

frontend/src/metabase/dashboard/components/Dashboard.jsx

@@ -188,7 +188,7 @@ export default class Dashboard extends Component<*, Props, State> {
         }
 
         return (
-            <LoadingAndErrorWrapper style={{ minHeight: "100%" }} className={cx("Dashboard flex-full", { "Dashboard--fullscreen": isFullscreen, "Dashboard--night": isNightMode})} loading={!dashboard} error={error}>
+            <LoadingAndErrorWrapper className={cx("Dashboard flex-full pb4", { "Dashboard--fullscreen": isFullscreen, "Dashboard--night": isNightMode})} loading={!dashboard} error={error}>
             {() =>
                 <div className="full" style={{ overflowX: "hidden" }}>
                     <header className="DashboardHeader relative z2">