refactor(catalog): extract search result items extensions file

Signed-off-by: Camila Belo <camilaibs@gmail.com>

plugins/catalog/src/alpha/plugin.tsx

@@ -26,7 +26,6 @@ import {
 
 import { entityRouteRef } from '@backstage/plugin-catalog-react';
 import { createEntityContentExtension } from '@backstage/plugin-catalog-react/alpha';
-import { createSearchResultListItemExtension } from '@backstage/plugin-search-react/alpha';
 
 import {
   createComponentRouteRef,
@@ -40,17 +39,7 @@ import pages from './pages';
 import filters from './filters';
 import navItems from './navItems';
 import entityCards from './entityCards';
-
-/** @alpha */
-export const CatalogSearchResultListItemExtension =
-  createSearchResultListItemExtension({
-    id: 'catalog',
-    predicate: result => result.type === 'software-catalog',
-    component: () =>
-      import('../components/CatalogSearchResultListItem').then(
-        m => m.CatalogSearchResultListItem,
-      ),
-  });
+import searchResultItems from './searchResultItems';
 
 const OverviewEntityContent = createEntityContentExtension({
   id: 'overview',
@@ -91,7 +80,7 @@ export default createPlugin({
     ...filters,
     ...navItems,
     ...entityCards,
-    CatalogSearchResultListItemExtension,
+    ...searchResultItems,
     OverviewEntityContent,
   ],
 });

plugins/catalog/src/alpha/searchResultItems.tsx

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2023 The Backstage Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { createSearchResultListItemExtension } from '@backstage/plugin-search-react/alpha';
+
+export const CatalogSearchResultListItemExtension =
+  createSearchResultListItemExtension({
+    id: 'catalog',
+    predicate: result => result.type === 'software-catalog',
+    component: () =>
+      import('../components/CatalogSearchResultListItem').then(
+        m => m.CatalogSearchResultListItem,
+      ),
+  });
+
+export default [CatalogSearchResultListItemExtension];