HTML Widgets; Message Boxes with short messages are now sized to be smaller

Automatic sizing of message boxes (i.e., where no sizes are specified in the options parameter) such as widget.UI.MsgBoxConfirm, has been tweaked so that shorter messages are not shown in almost full-screen-sized message boxes.

This change has also been applied to finPOWER Connect Cloud.

For full control of message box sizing, the options parameter allows the following properties:

• width (an HTML size, e.g., "50%" or "400px")
• height (an HTML size, e.g., "50%" or "400px")
• maxWidth (the maximum size in pixels, e.g., 480)
• maxHeight (the maximum size in pixels, e.g., 480)