public function update(Request $request, Comment $comment)
    {
        $this->authorize('edit-comment', $comment);

        $this->validate($request, [
            'message' => 'required|string'
        ]);

        $comment->update([
            'comment' => $request->message
        ]);

        return redirect()->to(url()->previous() . '#comment-' . $comment->id);
    }