Layout/Style adjustments

wwwroot/css/placeholder.css

@@ -1,10 +1,9 @@
-.placeholder-content {
+.placeholder {
   flex: 1;
   display: flex;
   flex-direction: column;
-  align-items: center;
-  justify-content: center;
-  gap: var(--s4);
+  gap: var(--s2);
+  padding: calc(var(--s4) * 2);
 }
 
 .placeholder-icon {