Koenig - Clicks below the editor canvas always focus the editor
Koenig - Clicks below the editor canvas always focus the editor

refs https://github.com/TryGhost/Ghost/issues/9623
- fixes the broken click handling and expands it
    - trigger for clicks on the container rather than only the editor canvas
    - trigger only if the click is below the editor canvas
    - create an empty paragraph if the last section in the doc is a card

kevinansfield/Ghost-Admin,TryGhost/Ghost-Admin,TryGhost/Ghost-Admin,kevinansfield/Ghost-Admin