v4.0.0

Breaking Changes:

• Added getColorByThemeType()
• Added getThemeByColor()
• Added a default storage key to ThemeProvider
• Added 'use client' directive to client exports
• Renamed flipThemeByColor() to getFlippedThemeColor()
• Renamed getTheme() to getThemeByKey()
• Removed getColorByTheme()
• Removed color and colors from context and provider

Other Changes:

• Added TypeScript support
• Added more tests and updated old ones
• Updated AntiFlickerScript
• Updated tsconfig
• Updated docs
• Removed rollup and babel* packages in favor of tsc and ts-jest