Add user manager page (#22)

Reviewed-on: #22

src/GameIdeas/Client/GameIdeas.BlazorApp/Pages/Games/Gateways/GameGateway.cs

@@ -59,7 +59,7 @@ public class GameGateway(IHttpClientService httpClientService) : IGameGateway
         }
         catch (Exception)
         {
-            throw new CategoryNotFoundException(ResourcesKey.ErrorFetchGames);
+            throw new GameNotFoundException(ResourcesKey.ErrorFetchGames);
         }
     }
 }