chore(fs.dev): Webpack aliases to load local code from source

These changes force webpack to load the local pacakges (like
patterns and so on) from source, rather than from a compiled bundle.
This means that the lab site will reload whenever one makes changes
to pattern code.

packages/freesewing.lab/hooks/useApp.js

@@ -69,6 +69,7 @@ function useApp(full = true) {
   return {
     // Static vars
     site: 'lab',
+    patterns: config.patterns,
 
     // State
     language,