Issue #3468301 by szeidler: Add some basic automated tests

layout_builder_enhancements.info.yml

...ements_blocks/layout_builder_enhancements_blocks.info.yml

...ancements_blocks/src/Controller/ChooseBlockController.php

...ilder_enhancements_blocks/src/Routing/RouteSubscriber.php

...onfig/schema/layout_builder_enhancements_views.schema.yml

...ncements_views/layout_builder_enhancements_views.info.yml

...cements_views/src/EventSubscriber/ViewEventSubscriber.php

...builder_enhancements_views/src/Plugin/Block/ViewBlock.php

...er_enhancements_views/src/Plugin/Derivative/ViewBlock.php

...er_enhancements_views/src/Plugin/views/display/Inline.php

...ements_visual/layout_builder_enhancements_visual.info.yml

..._builder_enhancements_visual/src/Ajax/ShowInfoCommand.php

...der_enhancements_visual/src/Controller/InfoController.php

src/EventSubscriber/EventSubscriber.php

...all/core.entity_view_display.node.landingpage.default.yml

...er_enhancements_test/config/install/node.type.article.yml

...nhancements_test/config/install/node.type.landingpage.yml

..._enhancements_test/config/install/views.view.articles.yml

...hancements_test/layout_builder_enhancements_test.info.yml

tests/src/Functional/LayoutBuilderEnhancementsViewsTest.php