Add shortcuts and error-handling
- Add shortcuts for using "Chrome for Testing" and "Chrome-Headless-Shell"
-->--cft/cft=True********--chs/chs=True - Error early when combining UC Mode with Chrome-Headless-Shell
--> You can't combine UC Mode with Chrome-Headless-Shell
--> Chrome-Headless-Shell is incredibly fast, but not stealthy - Refresh Python dependencies