Websocket react on URL change

[TimoPtr]

Summary

This is an attempt to make the Websocket impl to react to a URL change.

Checklist

• [x] New or updated tests have been added to cover the changes following the testing guidelines.
• [x] The code follows the project's code style and best_practices.
• [x] The changes have been thoroughly tested, and edge cases have been considered.
• [x] Changes are backward compatible whenever feasible. Any breaking changes are documented in the changelog for users and/or in the code for developers depending on the relevance.

Any other notes

This is an attempt because I'm not sure it is actually doing anything, I don't know if there are a use case where the URL change that is not already disconnecting the web socket. Maybe if the internal is still accessible, but changing wifi SSID does disconnect briefly the WS already.