replacing alerts and confirms with custom dialog

[aem-code-sync[bot]]

Hello, I'm the AEM Code Sync Bot and I will run some actions to deploy your branch and validate page speed. In case there are problems, just click a checkbox below to rerun the respective action.

• [ ] Re-run PSI checks
• [ ] Re-sync branch

Commits

* [6810f5a](https://github.com/headwire-edge-delivery/eds-self-service-website/commit/6810f5adb07ae01907a5ad631b5786a485ff66b5) :white_check_mark: (latest)