[Feature Request] Add version number to dashboard

[ForceConstant]

Interestingly you can click update, but there is no where on the dashboard that tells you the current or available version number.

[esto-openscan]

Indeed, the current and available version are only shown on the settings page right now.

The entire update process has to be reworked soon to include Raspbian system packages, and I would like to include meaningful changelogs. The dashboard would be a good place to show them to the user.