extract css doesn't detect function calls

[yoshuawuyts]

e.g. this doesn't work:

const insertCSS = require('insert-css')
insertCSS('html, body { height: 100%; }')

from choojs/bankai#49

[ahdinosaur]

hmm, that's weird. static-module should be doing the heavy lifting here and definitely supports function calls like that.

[goto-bus-stop]

we're now 2 static-module major versions in the future and i can't repro this, so it's probably fixed. thanks!