docs: fixed design bug in API reference (#2213)

www/docs/docusaurus.config.js

@@ -216,6 +216,11 @@ module.exports = {
             showObjectSchemaExamples: true,
             requiredPropsFirst: true,
             hideRequestPayloadSample: true
+          },
+          theme: {
+            sidebar: {
+              width: '250px'
+            }
           }
         }
       },

www/docs/src/css/custom.css

@@ -581,10 +581,6 @@ html:not([data-theme="dark"]) .menu__list-item.topright-icon .menu__link.menu__l
   padding-bottom: 6px;
 }
 
-.redocusaurus .menu-content {
-  width: var(--doc-sidebar-width);
-}
-
 .navbar-github-link {
   overflow: visible;
 }