docs: udpated api reference (#25172)

- Move the API reference into the vercel build
- Update api reference organization and styling

libs/experimental/langchain_experimental/prompt_injection_identifier/hugging_face_identifier.py

@@ -5,7 +5,7 @@ from __future__ import annotations
 from typing import TYPE_CHECKING, Union
 
 from langchain.pydantic_v1 import Field, root_validator
-from langchain.tools.base import BaseTool
+from langchain_core.tools import BaseTool
 
 if TYPE_CHECKING:
     from transformers import Pipeline