sage

281be086 -

gh-36857: use unicode characters to display tables This is using unicode box-drawing characters to make better-looking tables. ### :memo: Checklist - [x] The title is concise, informative, and self-explanatory. - [x] The description explains in detail what this PR is about. ### :hourglass: Dependencies - #36861 <!-- List all open PRs that this PR logically depends on - #12345: short description why this is a dependency - #34567: ... --> URL: https://github.com/sagemath/sage/pull/36857 Reported by: Frédéric Chapoton Reviewer(s): Kwankyu Lee