refactor: overhaul UI for streamlined user experience

Redesign navigation, home overview, user portrait, and valuation pages
with improved functionality and responsive design.

Co-authored-by: null <4804959+fnvtk@users.noreply.github.com>

app/user-pool/page.tsx

@@ -0,0 +1,15 @@
+import { UserPoolHeader } from "@/components/user-pool/user-pool-header"
+import { UserPoolTable } from "@/components/user-pool/user-pool-table"
+import { UserPoolFilters } from "@/components/user-pool/user-pool-filters"
+import { UserPoolStats } from "@/components/user-pool/user-pool-stats"
+
+export default function UserPoolPage() {
+  return (
+    <div className="container mx-auto p-6 space-y-6">
+      <UserPoolHeader />
+      <UserPoolStats />
+      <UserPoolFilters />
+      <UserPoolTable />
+    </div>
+  )
+}