Bump electron-rebuild from 2.3.5 to 3.2.0 in /app

Bumps [electron-rebuild](https://github.com/electron/electron-rebuild) from 2.3.5 to 3.2.0.
- [Release notes](https://github.com/electron/electron-rebuild/releases)
- [Changelog](https://github.com/electron/electron-rebuild/blob/master/.releaserc.json)
- [Commits](https://github.com/electron/electron-rebuild/compare/v2.3.5...v3.2.0)

---
updated-dependencies:
- dependency-name: electron-rebuild
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

app/package.json

@@ -82,7 +82,7 @@
         "electron": "^13.1.2",
         "electron-builder": "^22.11.7",
         "electron-notarize": "^1.0.0",
-        "electron-rebuild": "^2.3.5",
+        "electron-rebuild": "^3.2.0",
         "eslint": "^7.28.0",
         "npm-run-all": "^4.1.5",
         "readline-sync": "1.4.10"