Docassemble.assemblyline

Added
* Export to JSON button on "share" screen
* Offer the user's address as default for second, third, etc user
* New baseline questions for probate matters
* new `show_if` parameter for all `*_fields()` methods on ALIndividuals
* Added include reference to new ALToolbox InterviewStats module

Changed
* Better contrast for accessibility
* "terms" now have a dotted underline instead of solid
* Improvements to exhibit code (OCR, etc)
* `send_button_html()` is no longer displayed if the bundle has no enabled documents
* default value of `github_user` comes from configuration instead of defaulting to `suffolklitlab`
* when the key is equal to `preview`, `_preview` is appended to filenames (to generate unique filenames in tests)
* improvements to typing (mypy)

Fixed
* the default feedback form title had literal mako tags

* Move the "answer set" feature behind a global configuration option (opt-in)
* Accessibility improvements
* Add PDF/A support to ALDocument class

Incorrect reference to save session location in the new "Answer set" feature

Correct the priority of the new default gender for a business; it was taking priority over the gender question

New:

* Added "answer set" feature that is available on production forms
* Accessibility improvements
* Minor API additions to improve developer experience with ALDocument class
* `language_fields()` method
* ALDocumentUpload class

Fixed:

* businesses have a default gender of "other" (helps language methods work correctly)
* Added some missing objects for nouns created by the Weaver
* Fixed label for "fax number" field
* return proper value when `key` function called in an addendum file

Changed:
* Types are now checked for safe usage with mypy on commit

Fixed:
* More protection when using snapshot feature to avoid snapshotting files/file-like objects that can't be restored
* fix some bad assumptions in the `as_editable_list()` method of ALDocumentBundle. Will work with all ALDocument subclasses now, including uploaded files