chore(ui): fix navbar copy

frontend/src/components/home/sections/navbar.tsx

@@ -161,7 +161,7 @@ export function Navbar() {
                     className="bg-secondary h-8 hidden md:flex items-center justify-center text-sm font-normal tracking-wide rounded-full text-primary-foreground dark:text-secondary-foreground w-fit px-4 shadow-[inset_0_1px_2px_rgba(255,255,255,0.25),0_3px_3px_-1.5px_rgba(16,24,40,0.06),0_1px_1px_rgba(16,24,40,0.08)] border border-white/[0.12]"
                     href="/auth"
                   >
-                    Signup
+                    Get started
                   </Link>
                 )}
               </div>