fix: modularize icons

[sagardspeed2]

Describe your changes

reduce runtime bundle size by modularize icons

Screenshots [Optional]

Issue ticket number and link

Closes #185

Checklist before requesting a review

• I have performed a self-review of my code
• I have added tests
• I have added a changeset pnpm changeset add
• I have added example usage in the kitchen sink app

[changeset-bot]

🦋 Changeset detected

Latest commit: d1a5be4

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 5 packages

Name	Type
@ensembleui/react-framework	Patch
@ensembleui/react-kitchen-sink	Patch
@ensembleui/react-runtime	Patch
@ensembleui/react-preview	Patch
@ensembleui/react-starter	Patch

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Visit the preview URL for this PR (updated for commit d1a5be4):

https://react-kitchen-sink-dev--pr1005-185-modularize-icons-9hcvk2ay.web.app

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[evshi]

This should be generalized to allow any IconSet, not just specially handing MUI Icons.

If you don't import the entire icon set and instead only import the ones that are used, does that reduce the bundle size further?

[evshi]

Can you add some tests for Icon/Avatar component.