fix: show card awakening toggle on mobile

src/routes/cards/+page.svelte

@@ -1780,9 +1780,23 @@
     }
 
     .list-header {
+      display: flex;
+      justify-content: flex-end;
+      min-width: 0;
+      padding: 10px 16px;
+    }
+
+    .list-header > span,
+    .list-header > .sort-button {
       display: none;
     }
 
+    .header-level-toggle button {
+      min-width: 64px;
+      min-height: 44px;
+      padding: 10px 12px;
+    }
+
     .card-list {
       padding: 5px 16px;
     }