v0.6.0

• Fixed group collapse: only the last group's collapse toggle used to work.
• Rolled-back items now offer Delete all features after History Marker in the right-click menu.
• Double-click the name to rename; double-click elsewhere on the row to edit. A single click now selects (and selects the feature in the Fusion GUI too).
• Multi-selected rows are pushed to Fusion as a real selection, so commands such as Mirror can consume the picked features.
• Errored/warned items are highlighted red/yellow, with the message on hover.
• Fixed a crash when selecting a position Snapshot.