🚚 reconstructing and fixing file structures

The reconstruction includes moving the Navbar component from shared to widget because Navbar is a group of elements, and
removing the login-signup form due to changes in logic that will use a popup flow to improve the user experience without
navigating to another page for authentication.

widgets/navbar/ui/LoginAndSignup.tsx

@@ -0,0 +1,30 @@
+"use client";
+
+import { routes } from "@/shared/config/routes";
+import { Button, Link, NavbarItem } from "@heroui/react";
+import React from "react";
+
+const LoginAndSignup = () => {
+  return (
+    <>
+      <NavbarItem className="hidden lg:flex">
+        <Link href={routes.login} className="font-medium">
+          Login
+        </Link>
+      </NavbarItem>
+      <NavbarItem>
+        <Button
+          color="primary"
+          variant="solid"
+          radius="sm"
+          as={Link}
+          href={routes.signup}
+        >
+          Sign Up
+        </Button>
+      </NavbarItem>
+    </>
+  );
+};
+
+export default LoginAndSignup;