Improve search bar (#700)

docusaurus.config.js

@@ -26,6 +26,14 @@ module.exports = {
       theme: require('prism-react-renderer/themes/dracula'),
       darkTheme: require('prism-react-renderer/themes/dracula'),
     },
+    algolia: {
+      appId: 'none', // The application ID provided by Algolia
+      apiKey: 'none',  // Public API key
+      indexName: 'none', // index name
+
+      // Optional: see doc section below
+      contextualSearch: true,
+    },
     zoomSelector: '.markdown :not(em) > img',
     colorMode: {
       defaultMode: 'light',
@@ -219,33 +227,6 @@ module.exports = {
       },
     ],
   ],
-  themes: [
-      [
-      require.resolve("@easyops-cn/docusaurus-search-local"),
-      {
-          hashed: true,
-          // whether to index docs pages
-          indexDocs: true,
-          // must start with "/" and correspond to the routeBasePath configured for the docs plugin
-          // use "/" if you use docs-only-mode
-          // (see https://v2.docusaurus.io/docs/2.0.0-alpha.70/docs-introduction#docs-only-mode)
-          docsRouteBasePath: '/docs',
-          searchResultLimits: 8,
-          searchResultContextMaxLength: 50,
-
-          // whether to index blog pages
-          indexBlog: false,
-          // blogRouteBasePath: '/blog',
-
-          // files to ignore in search
-          // whether to index static pages
-          // /404.html is never indexed
-          indexPages: false,
-          ignoreFiles: [/docs\/release_notes\/.*/],
-
-          // language of your documentation, see next section
-          language: "en",
-    }]],
   plugins: [
     // ... Your other plugins.
     [