update vs.css

Author: realLiangshiwei

modules/docs/src/Volo.Docs.Web/Pages/Documents/Shared/Styles/vs.css

@@ -268,7 +268,7 @@ body {
 
             > ul {
                 display: block;
-                height: calc(100vh - 310px);
+                height: calc(100vh - 350px);
                 overflow-y: auto;
                 margin-right: -4px !important;
                 margin-top: 20px !important;