demo-ng - update to latest nativescript and angular

[two-bridges]

Hi team,

I noticed that the demo-ng needs updating (package.json is showing old versions)

nativescript-core is v5 (v8.x is the latest)
https://github.com/nativescript-community/ble/blob/master/demo-ng/package.json#L33

angular v7 (should be v14 or v15 is the latest)
https://github.com/nativescript-community/ble/blob/master/demo-ng/package.json#L22

{
  "dependencies": {
    "@angular/core": "~7.2.1",
    "@nativescript/core": "~5.1.2",
  }
}

I can submit an updated demo-ng to this repository

I have updated demo-ng on my local machine. Just wondering if I can get permissions to create a PR in this repo? Or should I just fork the repo and then provide a link to upgraded code that way?

Cheers

[two-bridges]

I've worked out how to open a PR from a fork now... 🎉

I'll create a PR for this soon. Today or next week sometime... It's not urgent

[two-bridges]

Here's the PR:

#259

Cheers 🙌