Reorganize project. Add folder for shared code between backend/dashboard. Switch from jest to ava for tests.

dashboard/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "zeppelin-dashboard",
+  "name": "@zeppelin/dashboard",
   "version": "1.0.0",
   "description": "",
   "private": true,

dashboard/tsconfig.json

@@ -13,9 +13,14 @@
       "esnext",
       "dom"
     ],
-    "baseUrl": ".",
+    "baseUrl": "src",
     "resolveJsonModule": true,
     "esModuleInterop": true,
-    "allowJs": true
+    "allowJs": true,
+    "paths": {
+      "@shared/*": [
+        "../shared/src/*"
+      ]
+    }
   }
 }