Image sub tools

Added image sub tools, updated preview and enabled expand option.

Add image

Add image in place along with colour picker preview.

Widget designer

Major content update, also opened the Widget designer, can now read the overview.

Image support

1. Initial development to support image content items.

UI and UX updates

Minor UX and UI updates and one small bug fix.

Editing live previews

1. Live editing previews added to the Content manager

Bug fix

Fixed a bug with the Content manager selector and also added the logic to preset the width for a new content item based on the sibling content items in the content row.

Content row styling

Added the ability to define the background colour for a content row.

Movement

Added the ability to move content rows from one area to another and content items from one content row to another.

Import jumbotron and offset control

Import jumbotron and offset control added to the Content manager.