feat: upgrade to ~3.4.5 typescript (#83)

Author: VladimirAmiorkov

package.json

@@ -42,6 +42,6 @@
   "dependencies": {
     "nativescript-hook": "^0.2.0",
     "semver": "5.5.0",
-    "typescript": "~3.1.1"
+    "typescript": "~3.4.5"
   }
 }