fix(test): e2e stability (#14749)

#### PR Dependency Tree


* **PR #14749** 👈

This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Bug Fixes**
* Improved link preview reliability by updating request identification
to better match modern browsers.
* **Tests**
* Made end-to-end and integration tests deterministic and more robust,
improving AI chat, image generation, attachment handling, settings
visibility, and editor flows.
* **Chores**
* Updated underlying tooling versions to enhance stability and
compatibility.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

tools/cli/package.json

@@ -28,7 +28,7 @@
     "clipanion": "^3.2.1",
     "css-loader": "^7.1.2",
     "cssnano": "^7.0.6",
-    "html-webpack-plugin": "^5.6.3",
+    "html-webpack-plugin": "^5.6.6",
     "inquirer": "^12.3.0",
     "jsonc-parser": "^3.3.1",
     "lodash-es": "^4.17.23",