Sometimes mobile mode doesn't use a mobile user agent by default

[mdmintz]

Sometimes mobile mode doesn't use a mobile user agent by default

Eg. driver = Driver(mobile=True) (Although metrics / dimensions were valid, the user_agent was not.)

If not specifying the user_agent, SeleniumBase should provide a default one that is recognized as a mobile device.

(This is already being done correctly with SeleniumBase formats that use BaseCase.)

[mdmintz]

This was resolved in 4.20.2 - https://github.com/seleniumbase/SeleniumBase/releases/tag/v4.20.2