npm(deps): bump node-sass from 6.0.1 to 8.0.0 in /app

Bumps [node-sass](https://github.com/sass/node-sass) from 6.0.1 to 8.0.0.
- [Release notes](https://github.com/sass/node-sass/releases)
- [Changelog](https://github.com/sass/node-sass/blob/master/CHANGELOG.md)
- [Commits](sass/node-sass@v6.0.1...v8.0.0)

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

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

app/package.json

@@ -14,7 +14,7 @@
     "@testing-library/jest-dom": "^5.16.4",
     "@testing-library/react": "^12.1.5",
     "@testing-library/user-event": "^14.4.3",
-    "node-sass": "^6.0.1",
+    "node-sass": "^8.0.0",
     "react": "^17.0.2",
     "react-dom": "^17.0.2",
     "react-draggable": "^4.4.5",