Restore checkboxes alignment in admin data grids

[krzksz]

Description (*)

This PR fixes checkboxes alignment in data grids in Magento admin panel. Without it, they are either not fully centred (Firefox, Safari, older Chrome) or totally shifted to the left (newest Chrome).

Fixed Issues (if relevant)

1. Magento 2.3.3 : Under Cache Management section, cache type checkboxes are not aligned  #25429: Magento 2.3.3 : Under Cache Management section, cache type checkboxes are not aligned

Manual testing scenarios (*)

1. Open admin panel and check data grids, e.g. cache management, index management, products in category etc.
2. Checkboxes should be centred within first column on the left.

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 are green)

[m2-assistant]

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

Hi @dmytro-ch, thank you for the review.
ENGCOM-6227 has been created to process this Pull Request

[m2-assistant]

Hi @krzksz, thank you for your contribution!
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