Webhooks Segmentation, multiline widget on UI Extensions API

This release introduces new Trigger Segmentation functionality for Webhooks. Now it is possible to select for which combination of entity types (Content Types, Entries, Assets) and possible actions (create, save, autosave, publish, unpublish, archive, unarchive, delete) you want Webhooks to be triggered.

This makes it easier to configure Webhooks for specific scenarios such as "Trigger when an entry is updated" or "Trigger when an asset is published". It is possible to setup up to 20 webhooks per space.