Allow for longer lesson titles in the wizard

[jom]

Is your feature request related to a problem? Please describe

The lesson wizard has a 40 character limit which users are hitting.

Describe the solution you'd like

Remove the limit to match the normal behavior.

Describe alternatives you've considered

Skip the wizard and enter the title normally in the editor.

Additional context

https://wordpress.org/support/topic/lesson-title-length/