fix: undo color change functionality for elements not working

[Kitenite]

Description

This PR addresses an issue where the undo functionality did not correctly revert color changes on UI elements.

Related Issues

closes onlook-dev#1763

Type of Change

• Bug fix
• New feature
• Documentation update
• Release
• Refactor
• Other (please describe):

Testing

Screenshots (if applicable)

Additional Notes

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Important

Fixes undo functionality for color changes by storing and using original styles in HistoryManager.

• Behavior:
  • Fixes undo functionality for color changes in HistoryManager by storing original styles in originalStyleMap.
  • Updates push() to use original styles when undoing update-style actions.
• Data Structures:
  • Adds originalStyleMap to HistoryManager to track original styles for update-style actions.
• Analytics:
  • Modifies sendAnalytics call in push() to use updated action data.

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