chore: ng v8 new loadChildren import syntax

[manoldonev]

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What is the current behavior?

NS Angular templates use loadChildren string syntax in lazy loaded routes.

What is the new behavior?

Angular version 8 deprecated the string syntax in favor of dynamic import. Full details @ https://angular.io/guide/deprecations#loadchildren-string-syntax

Old:

loadChildren: './lazy/lazy.module#LazyModule'

New:

 loadChildren: () => import('./lazy/lazy.module').then(m => m.LazyModule)