fix: lax helmet csp config for styles.

Required to support react-selct, see
https://github.com/JedWatson/react-select/issues/2917

lib/middleware/helmet.js

@@ -12,6 +12,13 @@ module.exports = function(config) {
                         'data:',
                         'gravatar.com',
                     ],
+                    styleSrc: [
+                        "'self'",
+                        'fonts.googleapis.com',
+                        'fonts.gstatic.com',
+                        'data:',
+                        'unsafe-inline',
+                    ],
                 },
             },
         });