POS UI extensions 1.4.0 update: new API, props

As of September 27, we added the following updates to POS UI Extensions:

• Introduced a Connectivity API which gives the UI extension access to the information about the device connectivity.
• Added optional BadgeStatus prop to the Badge component
• Added optional overrideNavigateBack prop to the Screen component
• Added isDevice function to the Device API

All of the changes are available for POS UI extensions version 1.4.0 and POS app version 8.18.0. See the version log for all version details.