horizontal scrollbar out of view

Summary

One of my projects uses text-files with very long lines.

Now, the preview of the file via the webinterface doesn't do any automatic line-breaks (which is good, btw). But this makes the file view somewhat unnavigable:

The horizontal scrollbar (for scrolling the very long lines) is at the bottom of the page. if the page covers multiple screens (because the file has many lines), this puts the horizontal scrollbar out of reach.

Because of the content of the file, it is impractical to scroll down to the end of the page, then scroll right and then jump up again (mainly because you don't see how far right you have to scroll, when being on the bottom of the page with the line out of view)

Steps to reproduce

Go to https://gitlab.com/umlaeute/testing/blob/master/mobydick.txt and try to read the text.

What is the current bug behavior?

The horizontal scrollbar is out of reach (at the bottom of the page) to scroll the text.

What is the expected correct behavior?

Keep the horizontal scrollbar always on the screen (e.g. by using a scrollable text-area, rather than scrolling the entire page)