fix(dashboard): search product variants by name or SKU in relation selectors (#4990)

Author: casperiv0

packages/dashboard/src/lib/components/data-input/default-relation-input.tsx

@@ -192,6 +192,9 @@ const createEntityConfigs = (i18n: any) => ({
 
     ProductVariant: createRelationSelectorConfig({
         ...createBaseEntityConfig('Product Variant', i18n),
+        buildSearchFilter: (term: string) => ({
+            _or: [{ name: { contains: term } }, { sku: { contains: term } }],
+        }),
         listQuery: graphql(`
             query GetProductVariantsForRelationSelector($options: ProductVariantListOptions) {
                 productVariants(options: $options) {