Code clean

- Imports/exports always at top
- Sapper template not needing a div to execute
- NPM packages updates: @rollup/plugin-commonjs 11.1.0 has a bug about import/exports

src/client.js

@@ -2,5 +2,5 @@ import * as sapper from '@sapper/app'
 
 // Start Sapper
 sapper.start({
-	target: document.getElementById('site')
+	target: document.body
 })