[fix] typescript is a dependency

package.json

@@ -10,7 +10,8 @@
     "express": "^4.16.4",
     "express-graphql": "^0.7.1",
     "graphql": "^14.0.2",
-    "graphql-tools": "^4.0.3"
+    "graphql-tools": "^4.0.3",
+    "typescript": "^3.1.6"
   },
   "devDependencies": {
     "@types/express": "^4.16.0",
@@ -26,7 +27,6 @@
     "request": "^2.88.0",
     "request-promise": "^4.2.2",
     "should": "^13.2.3",
-    "ts-node": "^7.0.1",
-    "typescript": "^3.1.6"
+    "ts-node": "^7.0.1"
   }
 }