Slight clipping on language selection for Atlassian Editor (Linux)

Seen on: Chrome 67.0.3396.99 / Linux

1. Have your friend open a PR
2. Add a comment to any line of that PR
3. Enter three backticks into the comment textfield to trigger the code-block view
4. Trigger the "Select Language" dropdown
5. Notice the clipping of the dropdown!502025681-Screenshot%20from%202018-07-05%2009-15-05.png|thumbnail!