Hello, as described in the Issue currently there is problem that if an request fails the js freezes.
I looked into it and the issue is that there is currently no fetch.catch() to handle errors with the fetch itself.
As far as can see currently the code only handles faulty responses.

This Pr add:

• prevention of the Js freeze
• showing the error message in the error model
• add a new request:error hook to handle this kind off errors

The request:error hook works mostly like response:error, so to prevent the modal from showing up you can do this:

this.component.on('request:error', (component, requestData, controls) => {
        controls.displayError = false;
});

Steps to reproduce the Error

1. Create a LiveComponent with an Input for example a select.
2. Open the Page
3. In the Browser Dev Tools go to the Network Tab and set throttling to offline
4. Change the Input to trigger a Request