Latest changes from importing/exporting from Grafana 12.3.1

[MadLittleMods]

These are automatic changes from importing/exporting from Grafana 12.3.1.

In order to verify that I'm not sneaking in any changes, you can follow these steps to get the same output.

Reproduction instructions:

1. Start Grafana

   docker run -d --name=grafana --add-host host.docker.internal:host-gateway -p 3000:3000 grafana/grafana
   

2. Visit the Grafana dashboard, http://localhost:3000/ (Credentials: admin/admin)
3. Import the Synapse dashboard: contrib/grafana/synapse.json
4. Export the Synapse dashboard. On the dashboard page -> Export -> Export as code -> Using the Classic model -> Check Export for sharing externally -> Copy
5. Paste into contrib/grafana/synapse.json
6. git status/git diff to check if there is any diff

Sanity checked the dashboard itself by importing the dashboard on https://grafana.matrix.org/ (Grafana 10.4.1 according to https://grafana.matrix.org/api/health). The process-level metrics won't work because #19337 just merged and isn't on matrix.org yet. Also just generally, this dashboard works for me locally with the load-tests I've been doing.

Motivation

There are few fixes I want to make to the Grafana dashboard and it sucks having to manually translate everything back over because we have different formatting.

Hopefully after this bulk change, future exports will have exactly what we want to change.

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.
• Code style is correct (run the linters)

[MadLittleMods]

Thanks for the review @anoadragon453 🐩