feat: add Usuarios route and user management functionality

- Introduced a new route for user management under /usuarios.
- Implemented user listing with search and edit capabilities.
- Added role management with visual indicators for user roles.
- Created a modal for editing user details, including role and permissions.
- Integrated Supabase for user data retrieval and updates.
- Enhanced UI components for better user experience.
- Removed unused planes route and related components.
- Added a new plan detail modal for displaying plan information.
- Updated navigation to include new Usuarios link.

src/routes/_authenticated.tsx

@@ -25,6 +25,7 @@ import {
   LogOut,
   KeySquare,
   IdCard,
+  Users2Icon,
 } from "lucide-react"
 import { useSupabaseAuth } from "@/auth/supabase"
 
@@ -41,6 +42,7 @@ const nav = [
   { to: "/planes", label: "Planes", icon: GraduationCap },
   { to: "/asignaturas", label: "Asignaturas", icon: FileText },
   { to: "/dashboard", label: "Dashboard", icon: LayoutDashboard },
+  { to: "/usuarios", label: "Usuarios", icon: Users2Icon },
 ] as const
 
 function getInitials(name?: string) {