feat: Add header progress bar

[jossmurphy]

Notion ticket link

Header Progress Bar Component

Implementation description

• implemented imported progress bar component, minimal customization
• note: custom styling has been more effort than it is worth, hopefully this is close enough to what has been requested

design review: is this design satisfying to the original requirements?

Steps to test

1.Navigate to http://localhost:3000/schedule
2. Hit back and next buttons

What should reviewers focus on?

• functionality

Checklist

• My PR name is descriptive and in imperative tense
• My commit messages are descriptive and in imperative tense. My commits are atomic and trivial commits are squashed or fixup'd into non-trivial commits
• I have run the appropriate linter(s)
• I have requested a review from the PL, as well as other devs who have background knowledge on this PR or who will be building on top of this PR