[SDK-2295] Add forceAutoHeight property to UI config

[stevehobbsdev]

Changes

This PR adds a new UI property forceAutoHeight that enables the auto-height class and height: auto!important style on the wrapper div. This helps scenarios that don't want to use the default calculated height.

new Auth0Lock(clientId, domain, {
  forceAutoHeight: true
});

References

Fixes #1963

Testing

• This change adds unit test coverage
• This change adds integration test coverage
• This change has been tested on the latest version of the platform/language

Checklist

• I have read the Auth0 general contribution guidelines
• I have read the Auth0 Code of Conduct
• All code quality tools/guidelines have been run/followed
• All relevant assets have been compiled