This project packages two Angular components into custom elements and register them as <time-theme>
that need to be bundled into a single file and distributed everywhere.
Static website and other JS Frameworks can include this file to use the custom elements in html pages.
The custom elements also implement custom events; websites can add event listener to listen to them to perform
For example, <time-theme> implements themeChange event and website should listen to it to change the background
color of the UTC offset square.