1. Web scrapes https://realpython.github.io/fake-jobs/ demo page
2. Gets all available job listings and saves to CSV file.
3. Generates Fernet key,
4. Saves files to output directory in both encrypted and decrypted format.

Output states:
Initial - all_saved_jobs.csv
Encrypted - encrypted_all_saved_jobs.csv
Decrypted - unencrypted_all_saved_jobs.csv