feat: Add IT Support catalog and related migrations, seeders, and email templates

- Created migration to add 'group_label' to 'product_type_fields' table.
- Implemented ItSupportCatalogSeeder to populate IT Support features and tiers.
- Added ProductCategorySeeder for initial product categories.
- Developed ProductMockupSeeder for mockup products in various categories.
- Introduced ProductTypeFieldSeeder to define fields for different product types.
- Created email templates for VPS service information and service renewal reminders.

app/Http/Resources/Api/Admin/ProductResource.php

@@ -32,6 +32,8 @@ class ProductResource extends JsonResource
             'ram'          => $this->ram,
             'disk'         => $this->disk,
             'bandwidth'    => $this->bandwidth,
+            'domain_count' => $this->domain_count,
+            'features'     => $this->features,
             'setup_fee'    => $this->setup_fee,
             'min_price'    => $minPrice,
             'billing_type' => $this->whenLoaded('pricings', function () {