chore(pack): Add author email

to fix packaging on linux

Author: lgeiger

app/package.json

@@ -14,7 +14,10 @@
     "nteract",
     "data"
   ],
-  "author": "nteract contributors",
+  "author": {
+    "name": "nteract contributors",
+    "email": "[email protected]"
+  },
   "license": "BSD-3-Clause",
   "bugs": {
     "url": "https://github.com/nteract/nteract/issues"