847d355cab
Basically this enables the select-tweaking behavior as per the guidelines: https://wiki.blender.org/wiki/Human_Interface_Guidelines/Selection#Select-tweaking. We use this in most other other editors that allow selecting and dragging multiple items. But besides the consistency improvement, this is important if we want to support dragging multiple assets (or files) in future. We want to support this at least for dragging multiple assets into an asset catalog for the upcoming asset catalog UI.