Add docs for useTagGroup (#4154)
* add docs for useTagGroup
* update tailwind preview
* add useTag to API section
* update anatomy diagram
* update to reference latest name changes
* address review comments
* update example descriptions
* include remove button in grid cell
* update anatomy diagram
* move to Status category
* minor style/wording change
* remove isFocused from useTagGroup
* update clear to remove
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Co-authored-by: Robert Snow <rsnow@adobe.com>
Co-authored-by: Devon Govett <devongovett@gmail.com>
