Added recent used colors in the brand panel

[Kitenite]

Description

Added recent colors section to show 12 most recently used colors

Related Issues

fixes onlook-dev#1697

Type of Change

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

Testing

Tested by running locally

Screenshots (if applicable)

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Important

Adds a recent colors section to the brand panel, displaying the 12 most recently used colors.

• Behavior:
  • Adds a recent colors section in the brand panel to display the 12 most recently used colors.
  • Updates ThemeManager in index.ts to manage recent colors with addRecentColors() and recentColorList.
• UI Components:
  • Updates BrandPopoverPicker in ColorBrandPicker.tsx to add selected colors to recent colors.
  • Displays recent colors in BrandTab in index.tsx using recentColorList from ThemeManager.

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