feat: implement DetailDialog component for PDF viewing and downloading; refactor API calls to use environment variables

src/components/carreras/DeleteCarreras.tsx

@@ -3,7 +3,6 @@ import { useQueryClient } from "@tanstack/react-query";
 import { useRouter } from "@tanstack/react-router";
 import { useState } from "react";
 import { Button } from "../ui/button";
-import { Trash } from "lucide-react";
 import { carrerasKeys } from "@/routes/_authenticated/carreras";
 import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogDescription, DialogFooter } from "../ui/dialog";