fix(frontend): queryFn signatures + Link import

useQuery received api fns typed (params?) => Promise<T>; React Query
passes a QueryFunctionContext, so data degraded to {} and broke tsc.
Wrap calls in () => and import Link from react-router-dom.

Authored By: TDvorak <[email protected]>

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

app/frontend/src/features/projects/pages/ProjectsPage.tsx

@@ -160,7 +160,7 @@ export function ProjectsPage() {
   const projectsQuery = useQuery({
     queryKey: ['projects'],
     enabled: !isDemoMode,
-    queryFn: listProjects,
+    queryFn: () => listProjects(),
   });
   const hostQuery = useQuery({
     queryKey: ['host-monitoring'],