Fix dialog title bars and env-switch crash from the Electron 42 / TS6 migration#1022

krassowski merged 2 commits into

jupyterlab:masterjupyterlab/jupyterlab-desktop:masterfrom

notluquis:fix/electron42-dialog-window-regressionsnotluquis/jupyterlab-desktop:fix/electron42-dialog-window-regressionsCopy head branch name to clipboard