New feature - Direct text editing for heading and description

[jameshawkinscodes]

This feature will allow a user to edit blurb heading and description directly within the blurb, without the need to use the Properties Pane.

This feature should integrate updates made to the heading and description together so that if a change is made directly in the blurb, the Properties Pane is automatically updated.

Potential conflict - If the Properties Pane allows text formatting, directly updating the text via the blurb may remove all formatting unless direct editing also includes a text formatting editor.