Find component roots for selector within container. Unlike a plain
querySelectorAll, this also includes container itself when it matches,
so an enhancer works whether it is handed a broad container (e.g. document)
or the component root directly (as framework bindings do via a ref).
Find component roots for
selectorwithincontainer. Unlike a plainquerySelectorAll, this also includescontaineritself when it matches, so an enhancer works whether it is handed a broad container (e.g.document) or the component root directly (as framework bindings do via a ref).