docx, xlsx, pdf viewers, dropzone for uploading, cleanup

frontend_reactjs/package.json

@@ -11,14 +11,15 @@
   },
   "dependencies": {
     "-": "^0.0.1",
-    "@cyntler/react-doc-viewer": "^1.16.5",
     "@emotion/react": "^11.11.4",
     "@emotion/styled": "^11.11.5",
+    "@js-preview/docx": "^1.6.2",
+    "@js-preview/excel": "^1.7.8",
+    "@js-preview/pdf": "^2.0.2",
     "@mui/icons-material": "^5.15.20",
     "@mui/material": "^5.15.20",
-    "@mui/x-charts": "^7.7.1",
+    "@mui/x-charts": "^7.8.0",
     "@mui/x-data-grid": "^7.7.1",
-    "@tanstack/react-query": "^5.45.1",
     "autoprefixer": "^10.4.19",
     "axios": "^1.7.2",
     "file-type": "^19.0.0",