[Backport] icon text showing feature

[mage2pratik]

Original Pull Request

#18706
added feature to show text when icon is set to false

Description (*)

Added feature to force set show text = true when icon is set to false. Currently when you want to remove icon you have to go and set each @_icon-font-text-hide = true manually
It would make more sense to have it always shown when icon not existing.

Fixed Issues (if relevant)

Manual testing scenarios (*)

add icon with @_icon-font-text-hide= false and also icon-content = false
text should be shown as icon is false

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)

[magento-engcom-team]

Hi @mage2pratik. Thank you for your contribution
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[magento-engcom-team]

Hi @VladimirZaets, thank you for the review.
ENGCOM-4339 has been created to process this Pull Request

[sdzhepa]

✔️ QA Passed

[m2-assistant]

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