Explore elimination of edit wrappers

[chrisvxd]

Puck introduces various wrappers during edit mode to provide drag-and-drop and edit functionality. This can result in different interface between edit and render modes, such as:

• children containing different nodes
• CSS Grid styles across DropZones not being possible in edit mode, even if it works in render mode
• Inline elements do not render correctly in edit mode (Inline CSS #4)

We should explore ways to eliminate these styles without compromising the Puck interface. A solution may or may not involve breaking changes.