Add doc-typehints to class properties found by the PropertyDocumentation
sniff to improve the documentation.
Once the sniff is enabled it avoids that new code is missing type
declarations. This is focused on documentation and does not change code.
Change-Id: I1f306a3925d6768209a06e70082598b2f70cd319
Ensure CodexHTMLForm reflects HTML changes made to Codex components,
Radio and Checkbox.
- Changed the top level element from `span` to `div` in HTMLRadioField.
- Update test in HTMLRadioFieldTest.
HTMLCheckboxField already has a top-level `div` so no changes are
needed.
Bug: T370689
Change-Id: I0b7e5369e23b1a95e431014d7b22f3f1064b3dba
