refactor: update navigation links and search parameters across authenticated routes

src/routes/_authenticated.tsx

@@ -102,7 +102,7 @@ function Layout() {
           </Sheet>
 
           {/* Brand */}
-          <Link to={user.isAdmin ? "/dashboard" : "/planes"} className="hidden items-center gap-2 md:flex">
+          <Link to="/dashboard" className="hidden items-center gap-2 md:flex">
             <span className="inline-flex h-8 w-25 items-center justify-center rounded-xl bg-primary/10 text-primary font-bold">
               <img src="https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcS8C2SvZe281wTNc9werkudO9aJiX3dOZm9T3s5DAfS0OUOvDbgc_WC61U_esY8GE8bZoI&usqp=CAU" alt="" />
             </span>
@@ -165,6 +165,7 @@ function Sidebar({ onNavigate }: { onNavigate?: () => void }) {
             <Link
               key={item.to}
               to={item.to}
+              search={{ ...(item.to === '/planes' ? { plan: '' } : {}) }}
               activeOptions={{ exact: true }}
               activeProps={{ className: "bg-primary/10 text-foreground" }}
               className="group inline-flex items-center gap-3 rounded-xl px-3 py-2 text-sm text-muted-foreground hover:bg-primary/10 hover:text-foreground"