Bonus Feature: Smarter Job CSV (Filtering, De-dup, Sorting)

• Added scrape_fake_jobs_to_csv_filtered():
  • Filter by keyword in job title (default: “Python”)
  • Filter out old postings via min_date (YYYY-MM-DD)
  • Remove duplicate listings (same title/company/location/date)
  • Sort newest-to-oldest by date
  • Exports to fake_jobs_filtered.csv