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/wechat-accounts/loading.tsx

@@ -0,0 +1,59 @@
+import { Skeleton } from "@/components/ui/skeleton"
+
+export default function WechatAccountsLoading() {
+  return (
+    <div className="container mx-auto p-4 space-y-6">
+      <div className="flex justify-between items-center mb-6">
+        <Skeleton className="h-8 w-48" />
+        <Skeleton className="h-10 w-32" />
+      </div>
+
+      <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
+        {Array(6)
+          .fill(0)
+          .map((_, i) => (
+            <div key={i} className="border rounded-lg p-4 shadow-sm">
+              <div className="flex items-center space-x-4 mb-4">
+                <Skeleton className="h-12 w-12 rounded-full" />
+                <div className="space-y-2">
+                  <Skeleton className="h-5 w-32" />
+                  <Skeleton className="h-4 w-24" />
+                </div>
+              </div>
+
+              <div className="grid grid-cols-2 gap-4 mb-4">
+                <div className="space-y-1">
+                  <Skeleton className="h-4 w-20" />
+                  <Skeleton className="h-6 w-16" />
+                </div>
+                <div className="space-y-1">
+                  <Skeleton className="h-4 w-20" />
+                  <Skeleton className="h-6 w-16" />
+                </div>
+                <div className="space-y-1">
+                  <Skeleton className="h-4 w-20" />
+                  <Skeleton className="h-6 w-16" />
+                </div>
+                <div className="space-y-1">
+                  <Skeleton className="h-4 w-20" />
+                  <Skeleton className="h-6 w-16" />
+                </div>
+              </div>
+
+              <div className="flex justify-between mt-4">
+                <Skeleton className="h-4 w-24" />
+                <div className="flex space-x-2">
+                  <Skeleton className="h-8 w-8 rounded-full" />
+                  <Skeleton className="h-8 w-8 rounded-full" />
+                </div>
+              </div>
+            </div>
+          ))}
+      </div>
+
+      <div className="flex justify-center mt-6">
+        <Skeleton className="h-10 w-64" />
+      </div>
+    </div>
+  )
+}