chore: dark config

src/pages/playground/style/input-list.less

@@ -10,11 +10,11 @@
     justify-content: space-between;
     padding: 0;
     padding-right: 6px;
+    overflow: hidden;
     cursor: pointer;
     transition: background-color 0.3s ease;
     border-radius: var(--border-radius-base);
     border: 1px solid var(--ant-color-border);
-    background-color: #fff;
 
     .btn-group {
       display: none;

src/pages/playground/style/rerank.less

@@ -14,7 +14,6 @@
         padding-top: 16px;
         position: sticky;
         top: 0;
-        background: var(--color-white-1);
         z-index: 100;
         align-items: center;
       }