chore(deps-dev): bump happy-dom in /apps/transifex

Bumps [happy-dom](https://github.com/capricorn86/happy-dom) from 14.12.3 to 15.7.4.
- [Release notes](https://github.com/capricorn86/happy-dom/releases)
- [Commits](capricorn86/happy-dom@v14.12.3...v15.7.4)

---
updated-dependencies:
- dependency-name: happy-dom
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

apps/transifex/package.json

@@ -42,7 +42,7 @@
     "eslint-plugin-jsx-a11y": "^6.10.0",
     "eslint-plugin-react": "^7.36.1",
     "eslint-plugin-react-hooks": "^4.6.2",
-    "happy-dom": "14.12.3",
+    "happy-dom": "15.7.4",
     "prettier": "^3.3.3",
     "typescript": "5.6.2",
     "vite": "5.4.7",