docs: udpated api reference (#25172)

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

templates/python-lint/python_lint/agent_executor.py

@@ -4,12 +4,12 @@ import subprocess  # nosec
 import tempfile
 
 from langchain.agents import AgentType, initialize_agent
-from langchain.agents.tools import Tool
 from langchain.pydantic_v1 import BaseModel, Field, ValidationError, validator
 from langchain_community.chat_models import ChatOpenAI
 from langchain_core.language_models import BaseLLM
 from langchain_core.prompts import ChatPromptTemplate
 from langchain_core.runnables import ConfigurableField, Runnable
+from langchain_core.tools import Tool
 
 
 def strip_python_markdown_tags(text: str) -> str: