Add overflow scroll to deploy-error-detail component

[bjarnef]

When an error happen, can we ensure the deploy-error-detail component has scroll, so it doesn't cause overflow in workspace area itself?

Furthermore I think it has incorrect use of <dl> as it expect <dt> and <dd> as direct children:
https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/dl

[ronaldbarendse]

Thanks again Bjarne! Both the overflow and dl/dt/dd issues will be fixed in the next release (including some other minor layout improvements):