Allow homepage widgets to rearrange on mobile (#2135)

console-webapp/src/app/home/home.component.scss

@@ -20,6 +20,7 @@
     display: grid;
     grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
     grid-gap: 20px;
+    grid-auto-flow: dense;
 
     mat-card {
       height: 100%;