fix: remove check for variations or variation master data for variati…

…on product data handling

- with these madatory checks `0` is returned as product view data if no variations are available for whatever reason
- it seems better to return at least the available standard product data instead of nothing
- prevents loading animations for variation/master product tiles that for some reason have no variations but the basic product data

src/app/core/models/product-view/product-view.model.ts

@@ -37,8 +37,7 @@ export function createVariationProductMasterView(
   defaultCategory?: CategoryView
 ): VariationProductMasterView {
   return (
-    product &&
-    variations?.length && {
+    product && {
       ...createProductView(product, defaultCategory),
       type: 'VariationProductMaster',
       defaultVariationSKU,
@@ -54,9 +53,7 @@ export function createVariationProductView(
   defaultCategory?: CategoryView
 ): VariationProductView {
   return (
-    product &&
-    productMaster &&
-    variations?.length && {
+    product && {
       ...createProductView(product, defaultCategory),
       type: 'VariationProduct',
       variations,