[TagGroup] We could add a maxRows and onGroupAction prop

[Alexandre Asselin (alexasselin008)]

maxRows would allow us to show a "show more" "show less" kind of button at the end.
https://reactspectrum.blob.core.windows.net/reactspectrum/6de1ad4d4bab6d6debacf576b8ba325871064e7e/storybook-s2/index.html?path=/docs/taggroup--docs

onGroupAction, there is no visual example in spectrum, but i'd assume it handles the "edit" use case:
https://react-spectrum.adobe.com/react-aria/TagGroup.html#contexts