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/components/ui/popover.tsx

@@ -0,0 +1,6 @@
+"use client"
+import * as PopoverPrimitive from "@radix-ui/react-popover"
+
+const Popover = PopoverPrimitive.Root
+
+const PopoverTrigger