Use "CI/CD minutes" consistently instead of "pipeline minutes"

Problem

In this issue we changed the language in the documentation to be consistently "CI/CD minutes." However, the UI includes older and inconsistent language when referring to these minutes, including:

• pipeline minute
• CI minute
• CI pipeline minute

Also, the Customers Portal uses CI minutes terminology, though maybe it was changed recently. CI minutes is part of our ubiquitous language and it's used in the backend and in our general communication.

Solution

Grep for pipeline minute and CI minute and adjust user-facing UI text to use the term CI/CD minutes.