Migrates PWABuilder from Shoelace to WebAwesome

[JudahGabriel]

Migrates PWABuilder frontend from Shoelace to WebAwesome, the newest iteration of Shoelace.

PR Type

Feature
Refactoring

Describe the current behavior?

We're using Shoelace 2, which is no longer maintained.

Describe the new behavior?

We're using WebAwesome, the newest version of Shoelace.

PR Checklist

• Test: run npm run test and ensure that all tests pass
• Target main branch (or an appropriate release branch if appropriate for a bug fix)
• Ensure that your contribution follows standard accessibility guidelines. Use tools like https://webhint.io/ to validate your changes.

[microsoft-github-policy-service]

Thanks @JudahGabriel for opening a Pull Request! The reviewers will test the PR and highlight if there is any conflict or changes required. If the PR is approved we will proceed to merge the pull request 🙌

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[sowenzhang]

lgtm