Issue #3206928: Add option to duplicate a paragraph

css/builder.css

layout_paragraphs.module

layout_paragraphs.routing.yml

...ragraphs_permissions/layout_paragraphs_permissions.module

...permissions/layout_paragraphs_permissions.permissions.yml

...s/src/Access/LayoutParagraphsPermissionsBuilderAccess.php

src/Controller/DuplicateController.php

src/Element/LayoutParagraphsBuilder.php

src/LayoutParagraphsLayout.php

tests/src/FunctionalJavascript/DuplicateComponentsTest.php

tests/src/FunctionalJavascript/ReorderFormElementsTest.php