Implement crawl_quotes (Pagination & Delay)

[ThomasKarpinski]

Implement the crawling logic to iterate over multiple pages and handle polite scraping practices. Tasks:

• Implement crawl_quotes() to handle pagination (for N pages or by tag).
• Add a small delay (time.sleep(delay)) between requests.
• Implement logic to stop crawling gracefully upon receiving a 404 error code.