chore(tags): tweak padding for new tag styles

[mukunku]

Summary

This is for SPARK-111.

This PR increases the y padding for:

• sm tags from 1px to 2px
• lg tags from 4px to 5px

How to Test

Confirm the new styles in Stacks Docs or Stacks Svelte:

• Stacks Docs: https://deploy-preview-2047--stacks.netlify.app/product/components/tags/#sizes
• Stacks Svelte: https://deploy-preview-2047--stacks-svelte.netlify.app/?path=/story/components-tag--sizes

[changeset-bot]

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Latest commit: fc02363

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