Announcement: dropping support for internet explorer

[lukePeavey]

As of v0.3.0, we are dropping support for internet explorer.

Why

• Microsoft officially ended support for IE on June 15 2022.
• Most major websites and platforms have stopped supporting IE, including GitHub, Google, Facebook, etc.
• The tools that we use for testing (Storybook, Puppeteer, Chromatic) do not support Internet Explorer.

For now, IE 11 is still included in the browser list for our babel configuration, so theoretically the library should continue to work on IE 11.

Please let me know if you have any feedback about this.