feat(profile): enhance ChargeCreditWallet with return URL handling and continue shopping button

- Added support for return URL handling in ChargeCreditWallet to improve user experience after payment.
- Introduced a "Continue Shopping" button that allows users to navigate back to their previous shopping session after successfully charging their wallet.
- Updated the component to manage pending return URLs and ensure they are saved and retrieved correctly.

These changes enhance the functionality of the ChargeCreditWallet page, providing a smoother transition for users post-transaction.

src/FrontOffice.Main/Pages/Profile/ChargeCreditWallet.razor

@@ -13,7 +13,16 @@
                       Class="rounded-lg" Variant="Variant.Filled">
                 @if (_paymentResult == "success")
                 {
-                    <span>شارژ کیف پول اصلی با موفقیت انجام شد! ✅</span>
+                    <MudStack Spacing="2">
+                        <span>شارژ کیف پول اصلی با موفقیت انجام شد! ✅</span>
+                        <MudButton Variant="Variant.Filled"
+                                   Color="Color.Primary"
+                                   Size="Size.Small"
+                                   StartIcon="@Icons.Material.Filled.ShoppingCart"
+                                   OnClick="ContinueShoppingAsync">
+                            ادامه خرید
+                        </MudButton>
+                    </MudStack>
                 }
                 else if (_paymentResult == "cancelled")
                 {