Navigation
Information about any given navigation. This information can be gotten from the router at
any time using the router.getCurrentNavigation() method.
type Navigation = {
id: number;
initialUrl: string | UrlTree;
extractedUrl: UrlTree;
finalUrl?: UrlTree;
trigger: 'imperative' | 'popstate' | 'hashchange';
extras: NavigationExtras;
previousNavigation: Navigation | null;
};