Resolve #3420517 "2.0.0 alpha1 follwoing form"

...es/ui_patterns_blocks/src/Plugin/Block/ComponentBlock.php

...ui_patterns_layouts/src/Plugin/Layout/ComponentLayout.php

modules/ui_patterns_views/ui_patterns_views.module

src/Element/ComponentForm.php

src/Element/ComponentFormBase.php

src/Element/ComponentPropsForm.php

src/Element/ComponentSlotsForm.php

src/Form/ComponentElementBuilder.php

src/Form/ComponentFormBuilderTrait.php

src/Plugin/UiPatterns/Source/AttributesWidget.php

src/Plugin/UiPatterns/Source/ChecboxesWidget.php

src/Plugin/UiPatterns/Source/ListTextareaWidget.php

src/SourceInterface.php

src/SourcePluginBase.php

src/SourcePluginManager.php

ui_patterns.module