refactor: initial work to productionize donut

[marshallpete]

Description

Move some stuff to make it more reusable.
Update opacity rules to account for all highlight conditions.
Remove a bunch of inconsequential tests.
Refactor how data is passed around so it matches existing patterns.
Fix hardcoded id instead of using color field.

Related Issue

#218

Motivation and Context

Donut is still in alpha. This is the initial work for getting donut ready to move out of alpha.

How Has This Been Tested?

Added tests, existing ones are passing.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[github-actions]

🎨 Storybook -> https://opensource.adobe.com/react-spectrum-charts/PR-336

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[github-actions]

🎨 Storybook -> https://opensource.adobe.com/react-spectrum-charts/PR-336