Increase available horizontal space when reading Wiki pages v2
I am reopening #321484 (closed) because it got side-tracked and didn't address the problem which still exists in GitLab wikis.
The wiki page doesn't allow for the use of the full horizontal width available in the page. This causes wide tables to be displayed poorly on widescreen monitors.
In the below image you can see that there is tons of horizontal width available, but the table is being cropped unnecessarily (given the available space), making for a poor UX.