first draft for fixing drag&drop issues#446

thkoehler11 merged 2 commits intodevelopmedizininformatik-initiative/feasibility-gui:developfrom

419-sorting-of-criteria-in-the-cohort-selection-is-not-possiblemedizininformatik-initiative/feasibility-gui:419-sorting-of-criteria-in-the-cohort-selection-is-not-possibleCopy head branch name to clipboard