Create game from form (#15)

Co-authored-by: Maxime Adler <madler@sqli.com>
Reviewed-on: #15

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

@@ -8,6 +8,18 @@ namespace GameIdeas.BlazorApp.Pages.Games.Gateways;
 
 public class GameGateway(IHttpClientService httpClientService) : IGameGateway
 {
+    public async Task<int> CreateGame(GameDto game)
+    {
+        try
+        {
+            return await httpClientService.PostAsync<int>(Endpoints.Game.Create, game);
+        }
+        catch (Exception)
+        {
+            throw new GameCreationException(ResourcesKey.ErrorCreateGame);
+        }
+    }
+
     public async Task<CategoriesDto> FetchCategories()
     {
         try