When using Jupyter to edit text files, I find the text window too narrow. Is there a way to increase its width? I'm running a theme that gives wider cells in Jupyter notebook, but it doesn't have any effect on the text files. I assume that one has to change some CSS option?
(I had thought that changing the width of the text editor required a different solution than changing the width of the cells (as I currently had full screen cells in my notebooks but a much narrower text editor), but the answer at the duplicate question does work for the text editor as well).