Bump dependencies & support next 14 for docs

- Renamed _app.js to mdx (for Next 14)
- Lint next config file & package.json

docs/next.config.js

@@ -1,9 +1,9 @@
 const withNextra = require('nextra')({
-    theme: 'nextra-theme-docs',
-    themeConfig: './theme.config.jsx'
-  })
+  theme: 'nextra-theme-docs',
+  themeConfig: './theme.config.jsx'
+})
+
+module.exports = withNextra()
    
-  module.exports = withNextra()
-   
-  // If you have other Next.js configurations, you can pass them as the parameter:
-  // module.exports = withNextra({ /* other next.js config */ })
+// If you have other Next.js configurations, you can pass them as the parameter:
+// module.exports = withNextra({ /* other next.js config */ })

docs/package.json

@@ -1,17 +1,17 @@
 {
-"scripts":{
-      "dev": "next dev",
+  "scripts": {
+    "dev": "next dev",
     "build": "next build",
     "start": "next start"
   },
-    "license": "MIT",
+  "license": "MIT",
   "dependencies": {
-    "@vercel/analytics": "^1.0.2",
+    "@vercel/analytics": "^1.1.1",
     "docsgpt": "^0.2.4",
-    "next": "^13.5.1",
-    "nextra": "^2.12.3",
-    "nextra-theme-docs": "^2.12.3",
+    "next": "^14.0.4",
+    "nextra": "^2.13.2",
+    "nextra-theme-docs": "^2.13.2",
     "react": "^18.2.0",
     "react-dom": "^18.2.0"
   }
-}
+}