feat: secondary progress

[lekoaf]

Describe your changes

Adds a "secondary" variant to the the progress. This will not break any existing usage of this component since the "primary" color will be default for the progress bar.

Issue ticket number and link

• Fixes #(issue)

Checklist before requesting a review

• I have performed a self-review of my own code
• I have verified that the code builds perfectly fine on my local system
• I have added tests that prove my fix is effective or that my feature works
• I have commented my code, particularly in hard-to-understand areas
• I have verified that my code follows the style already available in the repository
• I have made corresponding changes to the documentation