Issue #3274105 by e0ipso: Modernize codebase to leverage better typing

composer.json

grumphp.yml

...xample/src/Plugin/TypedRepositories/ArticleRepository.php

modules/typed_entity_example/src/WrappedEntities/Article.php

...yped_entity_example/src/WrappedEntities/BakingArticle.php

modules/typed_entity_example/src/WrappedEntities/User.php

...entity_example/tests/src/Unit/Render/Article/FullTest.php

...ntity_example/tests/src/Unit/WrappedEntities/UserTest.php

modules/typed_entity_ui/css/typed_entity_ui.admin.css

modules/typed_entity_ui/js/typed_entity_ui.admin.js

modules/typed_entity_ui/src/Controller/ExploreDetails.php

modules/typed_entity_ui/src/Form/ExploreForm.php

.../src/Form/RepositoryTable/BuildRepositoryTableService.php

...ty_ui/src/Form/RepositoryTable/RepositoryTableRequest.php

...y_ui/src/Form/RepositoryTable/RepositoryTableResponse.php

...ped_entity_ui/tests/src/Functional/ExploreDetailsTest.php

modules/typed_entity_ui/typed_entity_ui.module

src/Annotation/ClassWithVariants.php

src/Annotation/TypedRepository.php

src/Render/TypedEntityRendererBase.php