* fix url encoding to support direct pastes to medium
* move check for object keys length to getQueryStringState
* remove url parse from GistContainer
* use useMemo instead of memo
* remove decode()
* add copy URL button to export menu
expose CodeMirrorLink, load only necessary theme in embed
implement copy button in Carbon window controls
add copy to queryParam
use next/head and metatags in /embed
make editor have router prop
fix now.json rewrites
allow local stylesheets in embed