Issue edit diffs cannot be scrolled when extension is enabled

1. Go to https://github.com/renovatebot/renovate/issues/2958 2. Click "Edits" and open any edit 3. Try to scroll the diff The contents overflow the dialog. <img width="819" height="691" alt="Image" src="https://github.com/user-attachments/assets/529bb69a-44b4-43b9-9525-5286e4b5e2a8" /> Tested in Chrome v141. The issue might be caused by this rule. https://github.com/N1ck/gifs-for-github/blob/f3cc281d27fc173aba1e7c77de499f5edea71355/src/style.css#L55-L58