Bump @types/node from 18.11.19 to 20.3.1 in /app

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 18.11.19 to 20.3.1.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

---
updated-dependencies:
- dependency-name: "@types/node"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

app/package.json

@@ -46,7 +46,7 @@
   "devDependencies": {
     "@ngx-translate/core": "^14.0.0",
     "@types/mz": "2.7.4",
-    "@types/node": "18.11.19",
+    "@types/node": "20.3.1",
     "atomically": "^1.7.0",
     "filesize": "^9",
     "ngx-filesize": "^3.0.1"