remove set-viewport from python examples

[leenfhd]

Template PR Checklist

• Template exists in both TypeScript and Python (or noted why only one language)
• Uses @intuned/browser (TypeScript) or intuned_browser (Python) helpers where applicable
• testParameters/ directory exists for each API (and AuthSession if applicable)
• Job scripts added to package.json/pyproject.toml if template is meant to run as a job (and for AuthSession if applicable)
• README written following existing example structure (similar to rpa-auth-example/README.md or quick-recipes/README.md)
• Main README and language-specific README updated if adding/modifying examples