v3.0.0

Breaking Changes:

• Added a distinction between colors and themes
• Updated defaultTheme prop to default to themes.auto
• Updated context with theme (as active theme), color (as active color), themes (as object with supported themes), and color (as object with supported colors)
• Removed colors from server-side and client-side package
• Removed getColors()

Other Changes:

• Added 'auto' theme
• Added themes for server-side and client-side components
• Added colors.auto option that automatically determines color scheme based on prefers-color-scheme and undefined for server
• Added feature to automatically update theme if prefers-color-scheme changes
• Added feature to automatically switch to the opposite color from whatever color is set by 'auto' mode
• Added localStorage.mock.js and matchMedia.mock.js
• Added ThemeAutoColor component for tests
• Added tests for functions in theme.helper.js
• Added tests for the 'auto' option
• Added new tests + updated old ones
• Added colors object to theme.helper.js
• Added flipThemeByColor()
• Added prettier
• Updated inline script in AntiFlickerScript
• Moved device.mock.js to __tests__/mocks folder
• Moved isServer() to env.helper.js
• Renamed applyPreference() to applyTheme()
• Renamed setPreference() to saveTheme()
• Renamed getPreference() to getTheme()