Update old netlify-auth-js to gotrue-js

package.json

@@ -101,6 +101,7 @@
     "dateformat": "^1.0.12",
     "deep-equal": "^1.0.1",
     "fuzzy": "^0.1.1",
+    "gotrue-js": "^0.9.3",
     "history": "^2.1.2",
     "immutability-helper": "^2.0.0",
     "immutable": "^3.7.6",
@@ -114,7 +115,6 @@
     "mdast-util-definitions": "^1.2.2",
     "mdast-util-to-string": "^1.0.4",
     "moment": "^2.11.2",
-    "netlify-auth-js": "^0.5.5",
     "normalize.css": "^4.2.0",
     "preliminaries": "1.1.0",
     "preliminaries-parser-toml": "1.1.0",