feat: delete the added model #503 and display an error message when the requested file fails to parse #684 (#708)

### What problem does this PR solve?

feat: delete the added model #503
feat: display an error message when the requested file fails to parse
#684

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

web/package.json

@@ -23,10 +23,10 @@
     "js-base64": "^3.7.5",
     "jsencrypt": "^3.3.2",
     "lodash": "^4.17.21",
+    "mammoth": "^1.7.2",
     "rc-tween-one": "^3.0.6",
     "react-chat-elements": "^12.0.13",
     "react-copy-to-clipboard": "^5.1.0",
-    "react-file-viewer": "^1.2.1",
     "react-i18next": "^14.0.0",
     "react-infinite-scroll-component": "^6.1.0",
     "react-markdown": "^9.0.1",