@All I have just published a new version of the main widget, which includes openHAB 5.1 specific changes. Please not, that the page definition has also changed, to ged rid of the extra space at the top.
semanticHomeMenu Part 1 - Main [5.1.0.0;5.9.9.9] - Add-on Marketplace / UI Widgets - openHAB Community
I will change version ranges of the other widges, as they seem to work without changes.