Julian Eisel
58d818f8be
This makes it possible to trigger a refresh of the data-block preview, available next to the preview in the Asset Browser sidebar. The previews get easily outdated and automatically refreshing it all the time is not an option because it would be a consistently running, quite expensive process. So a button to cause a refresh should be reasonable. This button can also be used to switch back from a custom preview to a generated one. Although that may not be clear, and we should probably think of a way to explain that better. Addresses T82719.