add: auto link feature

src/utils/markdown-queries.js

@@ -103,4 +103,10 @@ export const useSearchMarkdown = (keyword) => {
             enabled: !!keyword,
         }
     );
-};
+};
+
+
+export const useLinks = () => {
+    const config = useConfig();
+    return useQuery(["links"], () => fetch_(`${config.BACKEND_HOST}/api/markdown/links`));
+}