Update changelog to describe changes from #12370 relative to develop

[MadLittleMods]

Update changelog to describe changes from #12370 relative to develop

Follow-up to #12370

Context: #12370 (comment)

Pull Request Checklist

• Pull request is based on the develop branch
• Pull request includes a changelog file. The entry should:
  • Be a short description of your change which makes sense to users. "Fixed a bug that prevented receiving messages from other servers." instead of "Moved X method from EventStore to EventWorkerStore.".
  • Use markdown where necessary, mostly for code blocks.
  • End with either a period (.) or an exclamation mark (!).
  • Start with a capital letter.
  • Feel free to credit yourself, by adding a sentence "Contributed by @github_username." or "Contributed by [Your Name]." to the end of the entry.
• Pull request includes a sign off
• Code style is correct
  (run the linters)

[MadLittleMods]

Previously, the changelog was describing changes relative to #12319 which fixes a bug on top of those changes.

But #12370 is a good fix in itself and is being merged independently of #12319. So what #12370 actually changes is just

Update /messages to use historic pagination tokens by default.

[clokep]

Does "by default" make sense or should it be "if no from parameter is given" or something?

"Update" sounds a bit like a behavior change FWIW, not a bugfix.

[MadLittleMods]

@clokep Updated with .feature and your language around being explicit with whether from is provided. I think "by default" also made sense 🤷

[clokep]

(This is going to fail CI checks, but we can override those.)

[MadLittleMods]

Thanks for the review and merge @clokep 🐸