Add post endpoint for book

endpoints/book.post.py

@@ -2,10 +2,10 @@
 
 from fastapi import APIRouter, Depends, HTTPException, status
 from sqlalchemy.orm import Session
+from typing import List
 from core.database import get_db
 from core.models.book import Book
 from core.schemas.book import BookCreate
-from typing import List
 
 router = APIRouter()