Headless components are behavioral wrappers meant to be styled
by the consumer with regular CSS. Shadow DOM on each child
created unnecessary style boundaries with no visual content to
protect. Only ProboSettingsButton retains its own shadow root
since it renders encapsulated styled markup.
Also removes the auto-registerComponents() side effect from
the main entrypoint so consumers opt in explicitly.
Signed-off-by: Émile Ré <emile@getprobo.com>
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