Add route for closest and list

src/app/app-routing.module.ts

@@ -0,0 +1,15 @@
+import { NgModule } from '@angular/core';
+import { RouterModule, Routes } from '@angular/router';
+import { TimezoneClosestComponent } from './timezone/components/timezone-closest/timezone-closest.component';
+import { TimezoneListComponent } from './timezone/components/timezone-list/timezone-list.component';
+
+const routes: Routes = [
+  { path: '', component: TimezoneListComponent },
+  { path: 'closest', component: TimezoneClosestComponent },
+];
+
+@NgModule({
+  imports: [RouterModule.forRoot(routes)],
+  exports: [RouterModule]
+})
+export class AppRoutingModule { }