No null for non-nullable fields

• BREAKING The copyWith function no longer accepts null for non-nullable fields to prevent ambiguity and errors.

Analyzer version bump

• Updating analyzer to >=2.0.0 <7.0.0 (thanks @shilangyu).

Dart version bump

• Updating sdk to >=3.0.0 <4.0.0

Fallback in constructor

• Fix Allow having a nullable constructor parameter with a fallback for a non-nullable class field.

Nullability handling fix

• Fix Warnings when using the ? operator on a dynamic type.
• Fix Warnings when using the ! operator on a non-nullable type.
• Fix Crash when object contains a dynamic field that is null.

Positioned constructor parameters

• Allow positioned constructor parameters (thanks @mrgnhnt96).
• Ability to define library defaults settings globally (thanks @mrgnhnt96).

Private classes support + lint correction

• Suppressing lint warnings for library_private_types_in_public_api.
• Classes that are declared as private will get a private copyWith extension.

Analyser update

• Updating analyzer to >=2.0.0 <5.0.0

Bugfix

• Fix for passing null into copyWith function for non-nullable values.

copyWith(...) nullability support

• BREAKING copyWith(...) function now correctly supports nullification of nullable fields like so copyWith(id: null).
• BREAKING CopyWith annotation for named constructor namedConstructor is renamed to constructor to be in sync with json_serializable.