[WEB-5898] chore: update tailwind config

[aaryan610]

Description

This PR updates the tailwind config with the new/updated variables-

1. Updated typography h5 and h6 font sizes.
2. Updated existing label palettes.
3. Added pink and purple to the label palettes.

Type of Change

• [x] Improvement (change that would cause existing functionality to not work as expected)

Summary by CodeRabbit

• Style
  • Updated color palette for label components across multiple color families (indigo, emerald, orange, pink, purple, crimson, yellow, and grey).
  • Adjusted typography sizing for heading levels.
  • Refined design tokens for backgrounds, borders, and text elements.

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