Fix: Inherit theme link styles for Button, Icon List, and ToC

[kaeizen]

fixes #3073

[github-actions]

🤖 Pull request artifacts

file	commit
pr3378-stackable-3378-merge.zip	22077ee

[github-actions]

Try this Pull Request in the WordPress playground: https://playground.wordpress.net/?mode=seamless#{"landingPage":"/wp-admin/post-new.php?post_type=page","preferredVersions":{"php":"latest","wp":"latest"},"steps":[{"step":"login","username":"admin","password":"password"},{"step":"installPlugin","pluginZipFile":{"resource":"url","url":"https://raw.githubusercontent.com/gambitph/Stackable/artifacts/pr3378-stackable-3378-merge.zip"}}]}

[kaeizen]

This PR is still needed even if we have the theme.json Block Style Inheritance. In the videos below, I am using the PR for the block style inheritance (#3490). Even if we enable the option to inherit from the theme.json, some link styles in the theme customizer doesn't get applied to Stackable Blocks.

Blocksy:

Blocksy.mov

Kadence:

Kadence.mov