Don't have much inspiration at the moment so I'm going to continue to implement more user requests.

Changes so far

• Add a setting to change how the image viewer is controlled. By default tapping once will show/hide the ui and double tap will zoom in. Add a new control style where single tap closes the image viewer and double tap show/hide the ui.
• Add option to hide actions in the rich text editor toolbar.
• Add setting to show labels for items in the rich text editor toolbar.