feat(Products): aplica validação no form de criação

Author: renebentes

src/BlazingShop/Products/CreateProduct/CreateProductPage.razor

@@ -4,7 +4,10 @@
 
 <h1>New Product</h1>
 
-<EditForm Model="_model" OnValidSubmit="@HandleSubmitAsync">
+<EditForm Model="_model" OnValidSubmit="HandleSubmitAsync" FormName="@(nameof(CreateProductInput))">
+    <DataAnnotationsValidator />
+    <ValidationSummary />
+
     <div class="row mb-3">
         <div class="col-9">
             <div class="mb-3">
@@ -41,4 +44,8 @@
             </div>
         </div>
     </div>
+
+    <button type="submit" class="btn btn-success">Save</button>
+    <a href="/products" class="btn btn-secondary">Cancel</a>
+
 </EditForm>

src/BlazingShop/Products/CreateProduct/CreateProductPage.razor.cs

@@ -7,7 +7,6 @@ namespace BlazingShop.Products.CreateProduct;
 
 public partial class CreateProductPage
 {
-
     private readonly CreateProductInput _model = new();
 
     private IEnumerable<GetCategoriesQuery> _categories = [];