(#1683) Align Icon Button with USWDS Implementation (On Hold)

[dlescarbeau]

(ON HOLD WAITING FOR USWDS 3.8.0)

Closes #1683

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• Unit tests have been updated or created to reflect any javascript changes.
• Storybook scenarios have been updated or created to reflect any html/css/js changes.

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• Any new or updated javascript code has 100% unit test coverage.
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