v3.0.0

New Features

• Added a brand new account system with the ability to sync your dashboard
  across devices
• Added a new "Evening" photo theme to choose from
• Improved the accessibility of the Podcast widget and other areas of the app

Under-the-Hood Changes

• Added a complete test suite for every core feature of the app; while this is
  mostly a behind-the-scenes addition, users will benefit from the change, as many bugs have been found and fixed as a result of writing the tests
• Rewrote theming system to use CSS variables / custom properties; this
  substantially reduces the amount of theme code, and paves the way for future theme additions
• Integrated Prettier into the project; all JavaScript/TypeScript files now have
  consistent style according to Prettier's ruleset
• Countless other fixes and improvements to the interface and overall user experience