fix: add missing EditIcon import in AusruestungsanfrageArtikelDetail

frontend/src/pages/AusruestungsanfrageArtikelDetail.tsx

@@ -6,7 +6,7 @@ import {
 } from '@mui/material';
 import {
   ArrowBack, Delete as DeleteIcon,
-  Add as AddIcon,
+  Add as AddIcon, Edit as EditIcon,
 } from '@mui/icons-material';
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
 import { useParams, useNavigate } from 'react-router-dom';