Ok for the 1-2-3 points.
I've problems only in the local environment but my customer works only online... so, it's ok.
For the images, the problem is that in the code generated from DataBridge there's a issue with the first letter uppercase.
For example, this is the code generated for the "edit" icon:
background-image:url(../../../images/Icons/edit.png);
The "Icons" has the first letter uppercase but the folder has the first letter lowercase ("/icons") and on Linux system is a problem.
The correct path should be:
background-image:url(../../../images/icons/edit.png);