Slimmer build for modern browsers

[nolanlawson]

For those of us who don't have to support IE, it would be nice to have a build of emoji-mart that removes all the babel-runtime polyfills, class transforms, etc. Perhaps the build structure could be something like:

dist
dist-es
dist-modern

…where dist-modern is also an ES module build, and doesn't contain any of the Babel transforms for older browsers. If users want to get fancy with this (e.g. support certain versions of certain modern browsers), then they can run their own Babel transforms.

[nolanlawson]

Just to put this in context: in my own app (pinafore.social), the chunk containing nimble-picker weighs in at 46.17kB, of which 5.18kB is babel's core-js. Probably there are also additional savings that could come from removing transforms within nimble-picker itself.