Make Slack URL an example and fallback if no href

Signed-off-by: Tejas Kumar <tejask@spotify.com>

packages/core-components/src/layout/ErrorBoundary/ErrorBoundary.tsx

@@ -67,13 +67,17 @@ const Error = ({ slackChannel, error }: EProps) => {
         {slackChannel && (
           <p>
             Please contact{' '}
-            <a
-              href={slackChannel.href}
-              target="_blank"
-              rel="noopener noreferrer"
-            >
-              <u>{slackChannel.name}</u>
-            </a>{' '}
+            {slackChannel.href ? (
+              <a
+                href={slackChannel.href}
+                target="_blank"
+                rel="noopener noreferrer"
+              >
+                <u>{slackChannel.name}</u>
+              </a>
+            ) : (
+              slackChannel.name
+            )}{' '}
             for help.
           </p>
         )}

packages/core/src/layout/constants.ts

@@ -13,7 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-export const slackChannel = {
-  name: '#backstage',
-  href: 'https://spotify.slack.com/archives/C54P1J36Z',
+
+type SlackChannel = {
+  name: string;
+  href?: string;
+};
+
+export const slackChannel: SlackChannel = {
+  name: '#backstage',
+  href: 'https://slack.com/channels/your-channel',
 };