VCST-608: add storeId field to swagger schema for POST connect/token (#2765)

Author: ksavosteev

src/VirtoCommerce.Platform.Web/Swagger/OpenIDEndpointDescriptionFilter.cs

@@ -32,7 +32,8 @@ public void Apply(OpenApiOperation operation, OperationFilterContext context)
                     { "grant_type", new OpenApiSchema() { Type = "string" } },
                     { "scope", new OpenApiSchema() { Type = "string" } },
                     { "username", new OpenApiSchema() { Type = "string" } },
-                    { "password", new OpenApiSchema() { Type = "string" } }
+                    { "password", new OpenApiSchema() { Type = "string" } },
+                    { "storeId", new OpenApiSchema() { Type = "string" } },
                 };
                 mediaType.Schema.Required = new HashSet<string>
                 {