chore: Replace deprecated Qt macros and Improve const correctness#309

mrbean-bremen merged 2 commits intoMeVisLab:masterMeVisLab/pythonqt:masterfrom

jcfr:replace-deprecated-macros-and-improve-const-correctnessjcfr/MeVisLab-pythonqt:replace-deprecated-macros-and-improve-const-correctnessCopy head branch name to clipboard