Video 6757 mobile connectivity

[olipyskoty]

Contributing to Twilio

All third party contributors acknowledge that any contributions they provide will be made under the same open source license that the open source project is provided under.

• [ ] I acknowledge that all my contributions will be made under the project's license.

Pull Request Details

JIRA link(s):

• VIDEO-6757

Description

This PR adds mobile designs for the <BrowserTest /> and <Connectivity /> components

Happy path:

https://user-images.githubusercontent.com/77076398/155438662-c880cd62-ef54-46c1-922b-9994c7d63389.MP4

Failed states:

https://user-images.githubusercontent.com/77076398/155438678-9cdbf44d-c2a4-4df1-971c-8648db712017.MP4

Burndown

Before review

• [ ] Updated CHANGELOG.md if necessary
• [x] Added unit tests if necessary
• [ ] Updated affected documentation
• [x] Verified locally with npm test
• [x] Manually sanity tested running locally
• [x] Included screenshot as PR comment (if needed)
• [x] Ready for review

Before merge

• [ ] Got one or more +1s
• [ ] Re-tested if necessary