Reducing space when there is no message on the page

[rodrigoobiassi]

• There is an unnecessary fixed size in the message area that leaves the title very separate from the top

[magento-engcom-team]

Hi @rodrigoobiassi. Thank you for your contribution
Here is some useful tips how you can test your changes using Magento test environment.
Add the comment under your pull request to deploy test or vanilla Magento instance:

• @magento-engcom-team give me test instance - deploy test instance based on PR changes
• @magento-engcom-team give me 2.3-develop instance - deploy vanilla Magento instance

For more details, please, review the Magento Contributor Assistant documentation

[magento-engcom-team]

Hi @VladimirZaets, thank you for the review.
ENGCOM-3506 has been created to process this Pull Request

[magento-engcom-team]

@rodrigoobiassi thank you for contributing. Please accept Community Contributors team invitation here to gain extended permissions for this repository.

[rodrigoobiassi]

Thanks guys, I already accepted Community Contributors team invitation.

[magento-engcom-team]

Hi @rodrigoobiassi. Thank you for your contribution.
We will aim to release these changes as part of 2.3.1.
Please check the release notes for final confirmation.