test: demo app update

Author: farfromrefug

demo/app/app.ts

@@ -1,3 +1,3 @@
-import * as application from 'tns-core-modules/application';
+import * as application from '@nativescript/core/application';
 
 application.run({moduleName: "main-page"});

demo/app/main-page.ts

@@ -1,8 +1,8 @@
 import * as Https from "nativescript-https";
-import * as Observable from "tns-core-modules/data/observable";
-import * as fs from "tns-core-modules/file-system";
-import * as dialogs from "tns-core-modules/ui/dialogs";
-import * as Page from "tns-core-modules/ui/page";
+import * as Observable from "@nativescript/core/data/observable";
+import * as fs from "@nativescript/core/file-system";
+import * as dialogs from "@nativescript/core/ui/dialogs";
+import * as Page from "@nativescript/core/ui/page";
 
 let page;
 let viewModel;

demo/package.json

@@ -12,7 +12,7 @@
     "nativescript-https": "file:../src",
     "nativescript-theme-core": "^1.0.4",
     "nativescript-unit-test-runner": "0.7.0",
-    "tns-core-modules": "~6.4.0"
+    "@nativescript/core": "~6.4.0"
   },
   "devDependencies": {
     "nativescript-css-loader": "~0.26.1",