It may not be exactly what you look like but the best option to get a solution as near as possible would be using the ``` annotation of discord.

So you can get a result like this

(Here a list of other characters to use: https://www.symbolcopy.com/line-symbols.html)

Code:

```──────────────────────────────────────────────── 29. Januari 2024 ───────────────────────────────────────────────────```

In the ``` annotation you can use several styling option. The documentation for this is not really good in my opinion but the best resource for this is in my opinion: https://www.writebots.com/discord-text-formatting/

I hope this helps you a bit