fix(deps): update nextra monorepo to v3

Author: renovate[bot]

package.json

@@ -19,8 +19,8 @@
     "@headlessui/react": "^2.1.1",
     "@radix-ui/react-tooltip": "^1.1.2",
     "next": "^14.2.4",
-    "nextra": "^2.13.4",
-    "nextra-theme-docs": "^2.13.4",
+    "nextra": "^3.0.0",
+    "nextra-theme-docs": "^3.0.0",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
     "react-icons": "^5.2.1",