To test: - run a report - click "Show SQL Code" - try to use the little tab at the bottom right of the code box to resize the box - the little tab doesn't work! This is a pretty minor annoyance, but the box does default to being pretty large. I see that the div CodeMirror-Scroll has its height set to 100%. If I change that in the inspector to something defined in pixels then the little tab works to change the size in the page.
The little tab does work for me in master in Firefox, but not in Chromium. Same for the box on "edit report".
See https://github.com/codemirror/CodeMirror/issues/850 There is code we could take from https://codepen.io/sakifargo/pen/KodNyR
It does work for me now in Chromium - I assume the bug in Code Mirror might have been fixed since.