Massive style changes

wwwroot/css/placeholder.css

@@ -2,10 +2,6 @@
   flex: 1;
   display: flex;
   flex-direction: column;
-  gap: var(--s2);
-  padding: calc(var(--s4) * 2);
-}
-
-.settings-page .placeholder-icon {
-  font-size: 4em;
+  gap: var(--box-spacing);
+  padding: var(--page-padding);
 }