Anki add-on: editor: move field contents down by one field

This add-on adds a shortcut (and optionally a button) to the editor. When you trigger the shortcut or press the button the following happens. The contents of the focused field (the field where your cursor is) is moved down to the next field and all fields below the focused field are also moved down by one field. The default shortcut is "Win(Meta)+Alt+N". You should adjust it. versions - 2022-12-29 shift to move only stuff after cursor of the current field down (.45+ only) - 2020-06-08 initial release