add button, change data, and fix icon for quiz

[Raymond0T]

Description

What is the purpose of your change?

-add button, change data, and fix icon for quiz (fixes #121)

What areas of the application does this change impact? (changes API, folder structure, etc)

-data file, images folder, and quiz component

What features/fixes are deferred/not handled in this PR?

-

Screenshot/link:

https://deploy-preview-120--pick-a-major.netlify.app/quiz/classes

Checklist

• [ ] Adds unit tests
• [ ] Has a work item linked to the PR

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[Raymond0T]

Is there a ticket this is connected to? Can we reference it in the description? we didn't have a ticket for it before but it is referenced now

[jwu910]

also per the designers

[Raymond0T]

also per the designers

This would be done in another PR when we fix maximum card selected issue and also saving user's selection.

[jwu910]

This would be done in another PR when we fix maximum card selected issue and also saving user's selection.

Sure that's fine. Was there a ticket already for that too?