Match the empty orders icon style to the empty basket state

Drop the tinted circle badge around the icon and use the same plain,
muted-gray sizing as basket.module.scss's empty state instead.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/components/orders/OrdersListView.module.scss

@@ -38,22 +38,12 @@
   @media (prefers-reduced-motion: no-preference) {
     animation: empty-state-enter 0.32s cubic-bezier(0.2, 0, 0, 1) both;
   }
-}
-
-.emptyIcon {
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  width: 3.5rem;
-  height: 3.5rem;
-  margin-bottom: $space-2;
-  border-radius: 999px;
-  background: color-mix(in srgb, $color-primary 12%, transparent);
 
   svg {
-    width: 1.75rem;
-    height: 1.75rem;
-    color: $color-primary;
+    width: 2.5rem;
+    height: 2.5rem;
+    margin-bottom: $space-2;
+    color: $color-text-muted;
   }
 }