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>

components/icons/apple-icon.tsx

@@ -0,0 +1,11 @@
+import type React from "react"
+
+export function AppleIcon(props: React.SVGProps<SVGSVGElement>) {
+  return (
+    <svg viewBox="0 0 24 24" fill="currentColor" height="24" width="24" {...props}>
+      <path d="M14.94 5.19A4.38 4.38 0 0016 2a4.44 4.44 0 00-3 1.52 4.17 4.17 0 00-1 3.09 3.69 3.69 0 002.94-1.42zm2.52 7.44a4.51 4.51 0 012.16-3.81 4.66 4.66 0 00-3.66-2c-1.56-.16-3 .91-3.83.91s-2-.89-3.3-.87a4.92 4.92 0 00-4.14 2.53C2.93 12.45 4.24 17 6 19.47c.8 1.21 1.8 2.58 3.12 2.53s1.75-.82 3.28-.82 2 .82 3.3.79 2.22-1.24 3.06-2.45a11 11 0 001.38-2.85 4.41 4.41 0 01-2.68-4.04z" />
+    </svg>
+  )
+}
+
+export default AppleIcon