[IMPROVE] wrong set layer in page module during drag and drop
During in the dragging state the dragged content element was overlayed from TCEform elements and loosing his hover state outside the browser or in rapid moving behaviour.
The "z-index" must be fixed here, again. A class must be added for the whole draggable content element that have to stabilized the active drag state. The correct value for the "z-index" should be bigger than 4000 (because of TCEforms elements).