Outdated Regexp in npm start task

https://github.com/microsoft/vscode-recipes/blob/591a2d6ab30fa7e6a35453c845bdbfaab1176822/Angular-CLI/README.md?plain=1#L113

The pattern matcher for the npm start task reads
```
"endsPattern": {
     "regexp": "Compiled |Failed to compile."
}
```
but since Angular 15+ it should instead be
```
"endsPattern": {
     "regexp": "Watch mode enabled. Watching for file changes..."
}
```