Make current user the owner of new books

src/hxbooks/book.py

@@ -158,7 +158,7 @@ def books():
 
 @bp.route("/new", methods=["GET"])
 def books_new() -> Response:
-    book = Book()
+    book = Book(owner_id=g.user.id)
     db.session.add(book)
     db.session.commit()
     return redirect(url_for(".book", id=book.id), 303)
@@ -177,6 +177,7 @@ def books_import() -> Response:
         abort(500, "Error fetching book data")
 
     book = Book(
+        owner_id=g.user.id,
         title=book_data.title,
         description=book_data.description,
         isbn=isbn,