Update tagline in the admin UI page footer
The page footer on the admin UI currently reads:
"Opencast Video Capture Software"
which is inconsistent with other descriptions we have of the product, and the "capture" part is potentially misleading since it's the one thing that Opencast itself doesn't do.
Perhaps "Opencast Video Management System" ? or just "Opencast Video System" ?
Also this string is not internationalized - not sure if it should be?
"The free and open source solution for automated video capture and distribution at scale."
"Opencast is a flexible and customizable video capture and distribution system for modern institutions."
Out of date.