Removed string.Format()s

Author: MarcosCobena

src/Mobile/eShopOnContainers/eShopOnContainers.Core/Services/Catalog/CatalogService.cs

@@ -25,7 +25,7 @@ public CatalogService(IRequestProvider requestProvider, IFixUriService fixUriSer
         public async Task<ObservableCollection<CatalogItem>> FilterAsync(int catalogBrandId, int catalogTypeId)
         {
             UriBuilder builder = new UriBuilder(GlobalSetting.Instance.BaseEndpoint);
-            builder.Path = string.Format($"{ApiUrlBase}/items/type/{0}/brand/{1}", catalogTypeId, catalogBrandId);
+            builder.Path = $"{ApiUrlBase}/items/type/{catalogTypeId}/brand/{catalogBrandId}";
             string uri = builder.ToString();
 
             CatalogRoot catalog = await _requestProvider.GetAsync<CatalogRoot>(uri);

src/Mobile/eShopOnContainers/eShopOnContainers.Core/Services/Order/OrderService.cs

@@ -44,7 +44,7 @@ public Task CreateOrderAsync(Models.Orders.Order newOrder, string token)
             {
                 UriBuilder builder = new UriBuilder(GlobalSetting.Instance.BaseEndpoint);
 
-                builder.Path = string.Format($"{ApiUrlBase}/{0}", orderId);
+                builder.Path = $"{ApiUrlBase}/{orderId}";
 
                 string uri = builder.ToString();