feat: add language selection and currency formatting options

src/app/app.component.html

@@ -1,6 +1,11 @@
+<h1>{{'hello' | uppercase | text}}</h1>
 <app-search [(input)]="search"></app-search>
-<div *ngFor="let hotel of hotels">
-  @if (hotel.hotelName.includes(search)) {
+@for (hotel of hotels; track hotel.hotelId) {
+  @let should_show = search === "" || hotel.hotelName.includes(search);
+  @if (should_show) {
     <app-hotel-item [hotel]="hotel"></app-hotel-item>
   }
-</div>
+}
+@if (!has_hotels()) {
+  <p>No hotels found</p>
+}