Hmm… they are centered for me…
Maybe it has to do with the theme you have? Try switching themes and seeing if it persists.
Other than that, its not a very detrimental bug and is only a small cosmetic flaw so idk
It looks like a problem with the theme, since I couldn’t reproduce it using the dark theme. I don’t think Roblox can fix that. If you can alert the creator of the theme about it they might be able to fix it.
Closing this out as “not a bug”, this is not significant enough for us to prioritize a patch for or follow-up with Discourse. If you also notice this on other Discourse fora with default themes, please feel free to raise it with the Discourse team.