Refactor: modernized account generator with English names, safer passwords, and Epic form integration

[piplarsson]

This pull request refactors the original script (main.py) into a more robust and user-friendly version (main.py).

✅ Key improvements:

• Replaced Swedish-like/random name fragments with real English first/last names.
• Added dataclass AccountDetails for structured account storage.
• Passwords are now generated using secrets for cryptographic safety, with enforced complexity.
• Birth dates are validated via datetime (no invalid dates like 31/Feb).
• Integrated webbrowser:
  • Automatically opens Temp-Mail for disposable email.
  • Automatically opens Epic Games signup form.
• Added clipboard support (Windows via clip, Linux/macOS via tkinter).
• Added country selection optimized for English-speaking users (default: United States).
• Results are saved to account_details.txt in UTF-8 with timestamp.
• Added guided workflow: each field (email, name, password, display name) is copied to clipboard step-by-step for easy pasting.

Overall, the script is now safer, easier to use, and tailored for the actual Epic registration flow.