Replace deprecated button props isPrimary, isSecondary, isTertiary and isLink

[nielslange]

With Gutenberg 14.2.0, the button propsisPrimary, isSecondary, isTertiary and isLink have been deprecated in favour of variant. See https://github.com/WordPress/gutenberg/blob/trunk/packages/components/CHANGELOG.md#1420-2021-07-21 and WordPress/gutenberg#31713.

Currently, we're still using all four deprecated button props:

• isPrimary → should be replaced with variant="primary"
• isSecondary → should be replaced with variant="secondary"
• isTertiary → should be replaced with variant="tertiary"
• isLink → should be replaced with variant="link"

Reference:

• https://developer.wordpress.org/block-editor/reference-guides/components/button/#variant-primary-secondary-tertiary-link

[arsanyjoseph]

@nielslange I would like to work on this.
if you don't mind, please assign me.
Thanks

[nielslange]

Hello @arsanyjoseph 👋

Thanks for volunteering to work on this issue. I just assigned it to you. For any clarifications, please feel free to reach out.