Forward port to 7.10: HSTTWO-2949 use component name on property boxes

Currently the node name of a component in a container is shown at the top of the property box. That has no meaning for the editors at all. Please use the component label there. See attached screenshot.
Now the node name is shown, but that has no meaning to the editor at all. Even when there are more components of the same type on the page, through the highlighting the editor can see which component she is actually editing.