fix(unity-bootstrap-theme): update pagination css

[scott-williams-az]

Description

Prev and Next hover background on pager is squashed

Adjusted CSS

Extras: fixed bug in example

Links

• Unity reference site
• JIRA ticket
• Unity Design Kit

Checklist

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

Browsers

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

Images