Update notes for 0.2.12

This update fixes several issues reported by the community.

• Fixed fixed aspect ratio (size link icon) failing when prop size was changed on the UI

• Fixed importing files from network locations such as NAS devices and Google Drive or OneDrive folders

• Fixed an error occurring when .ddstory files were saved in prop content folders

• Fixed double binding of Ctrl+G (now bound to Group)

If you encounter any errors, please report them here.