Update frontend-web dependencies and implement routing structure

- Added new dependencies: @fontsource-variable/geist, @radix-ui/react-separator, @radix-ui/react-tooltip, date-fns, react-router-dom, and recharts.
- Updated index.html to set the HTML class to "dark" for dark mode support.
- Refactored App component to implement routing with React Router, replacing the previous UI structure with a layout and multiple pages (NetWorth, Debts, Invoices, Clients).
- Enhanced CSS for dark mode and added depth utilities for improved UI aesthetics.
- Expanded Redux store to include net worth, debts, and invoices slices for comprehensive state management.

frontend-web/src/components/ui/separator.tsx

@@ -0,0 +1,26 @@
+import * as React from "react"
+import * as SeparatorPrimitive from "@radix-ui/react-separator"
+
+import { cn } from "@/lib/utils"
+
+function Separator({
+  className,
+  orientation = "horizontal",
+  decorative = true,
+  ...props
+}: React.ComponentProps<typeof SeparatorPrimitive.Root>) {
+  return (
+    <SeparatorPrimitive.Root
+      data-slot="separator"
+      decorative={decorative}
+      orientation={orientation}
+      className={cn(
+        "bg-border shrink-0 data-[orientation=horizontal]:h-px data-[orientation=horizontal]:w-full data-[orientation=vertical]:h-full data-[orientation=vertical]:w-px",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Separator }