fix(unity-bootstrap-theme): fix parallax image styles/remove unused s…

[davidornelas11]

…tories

Description

Links

• Unity reference site
• JIRA ticket

FOR APPROVERS

• Percy build approval

Checklist

• [ ] Unity project successfully builds from root yarn install & yarn build
• [ ] Commits do not contain multiple scopes
• [ ] Add/updated examples
• [ ] Add/updated READMEs/docs
• [ ] No new console errors
• [ ] Accessibility checks

Browsers

• [ ] Chrome
• [ ] Safari
• [ ] Firefox
• [ ] Edge

Images

[davidornelas11]

The brand team has stated that there is no mockup for the parallax image so there shouldn't be different versions until a mockup is created. The only version that should be shown is the version available on the asu homepage