fix: properly resolve static dir of mashlib

this fixes #1383

Author: linonetwo

lib/create-app.js

@@ -67,7 +67,7 @@ function createApp (argv = {}) {
 
   // Serve the public 'common' directory (for shared CSS files, etc)
   app.use('/common', express.static(path.join(__dirname, '../common')))
-  app.use('/', express.static(path.join(__dirname, '../node_modules/mashlib/dist'), { index: false }))
+  app.use('/', express.static(path.dirname(require.resolve('mashlib/dist/index.html')), { index: false }))
   routeResolvedFile(app, '/common/js/', 'solid-auth-client/dist-lib/solid-auth-client.bundle.js')
   routeResolvedFile(app, '/common/js/', 'solid-auth-client/dist-lib/solid-auth-client.bundle.js.map')
   app.use('/.well-known', express.static(path.join(__dirname, '../common/well-known')))