Mobile web UI usability in merge request review

If one will try to see merge request using phone, he will see something like this:

Clearly this is not review-friendly, since almost all lines of code are wrapped, due to width of columns with line numbers.

“Just turn your phone horisontally!” you’ll say. Ok, turning phone:

As you can see everything just got even worse: most of screen now covered by not-so useful elements, which were hidden in vertical view. Only 7 lines of code are left (and even less, if there were reviewing capability rights).

Probably that layout could be greatly improved.