Make spec.target searchable in catalog table for location

Signed-off-by: Boris Bera <beraboris@gmail.com>

.changeset/wet-sheep-reply.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-catalog': patch
+---
+
+Allow the `spec.target` field to be searchable in the catalog table for locations. Previously, only the `spec.targets` field was be searchable. This makes locations generated by providers such as the `GithubEntityProvider` searchable in the catalog table. [#23098](https://github.com/backstage/backstage/issues/23098)

plugins/catalog/src/components/CatalogTable/columns.tsx

@@ -86,6 +86,18 @@ export const columnFactories = Object.freeze({
     return {
       title: 'Targets',
       field: 'entity.spec.targets',
+      customFilterAndSearch: (query, row) => {
+        const targets = [];
+        if (Array.isArray(row.entity?.spec?.targets)) {
+          targets.push(...row.entity?.spec?.targets);
+        } else if (row.entity?.spec?.target) {
+          targets.push(row.entity?.spec?.target);
+        }
+        return targets
+          .join(', ')
+          .toLocaleUpperCase('en-US')
+          .includes(query.toLocaleUpperCase('en-US'));
+      },
       render: ({ entity }) => (
         <>
           {(entity?.spec?.targets || entity?.spec?.target) && (