fix(admin-ui): Allow period in slug

Fixes #2304

packages/admin-ui/src/lib/catalog/src/components/collection-detail/collection-detail.component.ts

@@ -61,7 +61,7 @@ export class CollectionDetailComponent
     customFields = this.getCustomFieldConfig('Collection');
     detailForm = this.formBuilder.group({
         name: ['', Validators.required],
-        slug: ['', unicodePatternValidator(/^[\p{Letter}0-9_-]+$/)],
+        slug: ['', unicodePatternValidator(/^[\p{Letter}0-9._-]+$/)],
         description: '',
         visible: false,
         inheritFilters: true,

packages/admin-ui/src/lib/catalog/src/components/product-detail/product-detail.component.ts

@@ -81,7 +81,7 @@ export class ProductDetailComponent
         enabled: true,
         name: ['', Validators.required],
         autoUpdateVariantNames: true,
-        slug: ['', unicodePatternValidator(/^[\p{Letter}0-9_-]+$/)],
+        slug: ['', unicodePatternValidator(/^[\p{Letter}0-9._-]+$/)],
         description: '',
         facetValueIds: [[] as string[]],
         customFields: this.formBuilder.group(