You'll notice that app1.js is only importing a from ./lib which is a file
that imports both a and b. So the end result is the css for both a and b
even though we're only using stuff from a.
I know why this is happening. I'm not asking for an explanation. I'm just trying
to come up with the best way (from the user of the lib module) to only include
the css for the exports that are being used.
Notice that in app3.js we're importing only the module we want. That's fine.
I'm trying to see if there's another way to do this...
I'm thinking a babel plugin is probably the best.