Fix project sorting on node page when there is no activity data

Signed-off-by: Rūdolfs Ošiņš <rudolfs@osins.org>

src/views/nodes/router.ts

@@ -60,7 +60,7 @@ export async function loadProjects(
   );
   // Sorts projects by most recent commit descending.
   const sortedProjects = results.sort(
-    (a, b) => b.activity[0].time - a.activity[0].time,
+    (a, b) => b.activity[0]?.time - a.activity[0]?.time,
   );
 
   return {