feat: Dockerize and complete project

apps/core/context_processors.py

@@ -0,0 +1,10 @@
+from apps.products.models import MainProduct
+
+
+def navigation(request):
+    main_products = (
+        MainProduct.objects.filter(is_active=True)
+        .prefetch_related("sub_products")
+        .order_by("order", "name")
+    )
+    return {"nav_main_products": main_products}