Wagtail 4

[katdom13]

Release notes:
https://docs.wagtail.org/en/stable/releases/4.0.html

• Updated tox.ini and workflows
• Updated documentation
• Fixed imports

Tests pass

collected 40 items                                                                                                                                                                      

tests/test_hooks.py ....                                                                                                                                                          [ 10%]
tests/test_middleware.py ......s.....                                                                                                                                             [ 40%]
tests/test_mixins.py ....                                                                                                                                                         [ 50%]
tests/test_views.py ..............                                                                                                                                                [ 85%]
tests/test_apps.py .....                                                                                                                                                          [ 97%]
tests/test_mixins.py .                                                                                                                                                            [100%]

[nickmoreton]

I left a couple of comments.

The github workflows could be simpler and I don't think the sandbox app needs any changes other that to update it for wagtail v4, without the conditionals for older versions.

[nickmoreton]

Thanks @katdom13 LGTM 👍

[robmoorman]

Great works guys. @davisnando @mikedingjan if it's ok we would like to help you with maintaining this package in order to boost compatibility delays :). If not would be great to get this working for django/wagtail 4!

[th3hamm0r]

Fyi: We also had a crash with the otp_form.html with wagtail >= 4 (reported here #187), for which I've created a PR #196.

[davisnando]

@robmoorman You can always create pull requests so feel free to help

[robmoorman]

He @davisnando would help a lot to review this PR and #196 ;)

[davisnando]

Tested and didn't found any issues