Fix room detail component on param change

Now subscribing to route params and reloading data when params change as the component
didn't show the new data when navigating to another room detail page.

src/app/room/room.component.ts

@@ -16,11 +16,12 @@ export class RoomComponent implements OnInit {
   }
 
   ngOnInit() {
-    this.getRoom();
+    this.route.params.subscribe(params => {
+      this.getRoom(params['roomId']);
+    });
   }
 
-  getRoom(): void {
-    const roomId: string = this.route.snapshot.paramMap.get('roomId');
-    this.roomService.getRoom(roomId).subscribe(room => this.room = room);
+  getRoom(id: string): void {
+    this.roomService.getRoom(id).subscribe(room => this.room = room);
   }
 }