Bump mime from 3.0.0 to 4.0.0 in /gui

Bumps [mime](https://github.com/broofa/mime) from 3.0.0 to 4.0.0.
- [Changelog](https://github.com/broofa/mime/blob/main/CHANGELOG.md)
- [Commits](https://github.com/broofa/mime/compare/v3.0.0...v4.0.0)

---
updated-dependencies:
- dependency-name: mime
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

gui/package.json

@@ -50,7 +50,7 @@
     "emoji-picker-element-data": "^1.4.0",
     "file-saver": "^2.0.5",
     "gridstack": "^10.0.0",
-    "mime": "^3.0.0",
+    "mime": "^4.0.0",
     "pinia": "^2.1.6",
     "pouchdb": "^8.0.1",
     "pouchdb-browser": "^8.0.1",