add jest-dom dependency

Signed-off-by: Kurt King <kurt.king@procore.com>
Signed-off-by: Kurt King <kurtaking@gmail.com>

packages/cli/templates/web-library-package/package.json.hbs

@@ -28,7 +28,8 @@
     "postpack": "backstage-cli package postpack"
   },
   "devDependencies": {
-    "@backstage/cli": "{{versionQuery '@backstage/cli'}}"
+    "@backstage/cli": "{{versionQuery '@backstage/cli'}}",
+    "@testing-library/jest-dom": "{{versionQuery '@testing-library/jest-dom' '5.10.1'}}",
   },
   "files": [
     "dist"

packages/cli/templates/web-library-package/src/setupTests.ts

@@ -14,5 +14,4 @@
  * limitations under the License.
  */
 
-// remove this line and add imports as required for your package
-export {}
+import '@testing-library/jest-dom';