Update to btn-default and selected class in toggle comment button

What does this MR do?

Update to btn-default and selected class in toggle comment button

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Before	After

Does this MR meet the acceptance criteria?

Conformity

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Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers
• Informed Infrastructure department of a default or new setting change, if applicable per definition of done

Security

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