This implements the `stroke_arrange` operator for grease pencil v3. This behaves the same as `GPENCIL_OT_stroke_arrange` but renamed to `stroke_reorder`. It should be more clear what the operator does. Note: This also adds new key binds. Co-authored-by: Falk David <filedescriptor@noreply.localhost> Pull Request: https://projects.blender.org/blender/blender/pulls/116682