Improving the print styles for frontend membership pages

[kimcoleman]

All Submissions:

• Have you followed the Contributing guideline?
• Does your code follow the WordPress' coding standards?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

Changes proposed in this Pull Request:

A few adjustments to help frontend pages, especially orders, print nicely.

Other information:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you successfully run tests with your changes locally?

Changelog entry

• ENHANCEMENT: Improved print appearance for frontend membership pages.