Set proper text-aligh for the <th> element of the Subtotal column in the Creditmemo email

[TomashKhamlai]

Description

Change the markup of the template:art: or edit the styles:lipstick:?
I preferred to keep the semantics of the HTML document and change the styles.

Fixed Issues (if relevant)

1. We definitely do not need this

Manual testing scenarios

1. Create an Invoice
2. Create a Credit Memo
3. Check the email that was sent to the Customer

Expected result:

Actual result:

The Luma and the Blank theme are affected

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-cicd2]

All committers have signed the CLA.

[magento-engcom-team]

Hi @TomashKhamlai. 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 {$VERSION} instance - deploy vanilla Magento instance

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

[TomashKhamlai]

@magento-engcom-team give me test instance
I will wonder if these comments work automatically 😮💡

[magento-engcom-team]

Hi @TomashKhamlai. Thank you for your request. I'm working on Magento instance for you

[magento-engcom-team]

Hi @TomashKhamlai, here is your new Magento instance.
Admin access: https://pr-17153.engcom.dev.magento.com/admin
Login: admin Password: 123123q

[magento-engcom-team]

Hi @TomashKhamlai. Thank you for your contribution.
We will aim to release these changes as part of 2.2.7.
Please check the release notes for final confirmation.

Please, consider to port this solution to 2.3 release line.
You may use Porting tool to port commits automatically.