chore(docs): bump @playwright/test from 1.50.1 to 1.51.1 in /web-app

Bumps [@playwright/test](https://github.com/microsoft/playwright) from 1.50.1 to 1.51.1.
- [Release notes](https://github.com/microsoft/playwright/releases)
- [Commits](microsoft/playwright@v1.50.1...v1.51.1)

---
updated-dependencies:
- dependency-name: "@playwright/test"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

web-app/package-lock.json

@@ -26,7 +26,7 @@
   "devDependencies": {
     "@eslint/eslintrc": "^3.3.0",
     "@eslint/js": "^9.21.0",
-    "@playwright/test": "^1.50.1",
+    "@playwright/test": "^1.51.1",
     "@rollup/plugin-inject": "^5.0.5",
     "@types/react": "^19.0.10",
     "@types/react-dom": "^19.0.4",