Dataset-aware asset usage and smoother video previews

This release brings dataset visibility to asset usage and smoother video previews.

The usage table — both the "In use" dialog and the usage locations shown when you confirm a delete — now includes a Dataset column, so you can see which dataset each referencing document lives in without opening it. Two workspaces can point at the same asset from different datasets, and now you can tell them apart at a glance.

Video thumbnails now rest on the first frame of the video instead of a frame from somewhere in the middle. Hovering to scrub picks up exactly where the thumbnail left off and runs to the last frame, so the preview reads as a natural progression rather than jumping backwards and forwards. The scrub position also applies immediately as your pointer enters a preview, instead of waiting for the next mouse move.

• Syncing a new asset version across its usages only patched one location when a document with the same ID existed in two datasets of the same project. The sidebar then reported everything as up to date while the other dataset still referenced the old version. Each project and dataset combination is now treated as a distinct usage, so every location gets patched.
• Toasts shown when deleting assets can now be dismissed. Previously they had no close button, so deleting several assets in a row stacked up notifications that blocked the interface for five seconds each.