chore: draft model downloading

src/pages/llmodels/style/catalog-item.less

@@ -15,6 +15,8 @@
     display: flex;
     justify-content: center;
     align-items: center;
+    width: 32px;
+    height: 32px;
 
     img {
       height: 32px;
@@ -80,7 +82,6 @@
     height: 3px;
     border-radius: 50%;
     background-color: var(--ant-color-text-quaternary);
-    margin-right: 8px;
     flex: none;
   }