docs(agent-tars): fix the wrong tsconfig paths (#1710)

Author: SoonIter

multimodal/websites/docs/tsconfig.json

@@ -20,7 +20,7 @@
         "./i18n.json"
       ],
       "@theme": [
-        "./node_modules/@rspress/theme-default"
+        "./theme/index.tsx"
       ],
       "@components/*": [
         "./src/components/*"
@@ -39,4 +39,4 @@
   "mdx": {
     "checkMdx": true
   }
-}
+}