Preserve component order in codegened component list (#6468)

### What

... at least within required/recommended/requried blocks.
This fixes an ordering issue in (upcoming) generic ui, but has no effect
on existing ones yet, making this part of
* #6237

(pictures from a not pr'ed branch)

Before:
<img width="384" alt="image"
src="https://github.com/rerun-io/rerun/assets/1220815/5ce9af88-4a9a-4a74-b2bc-0d3d794dc70e">

After:
<img width="382" alt="image"
src="https://github.com/rerun-io/rerun/assets/1220815/983eccc9-0773-4c85-b64d-c6705aad3cb4">


### Checklist
* [x] I have read and agree to [Contributor
Guide](https://github.com/rerun-io/rerun/blob/main/CONTRIBUTING.md) and
the [Code of
Conduct](https://github.com/rerun-io/rerun/blob/main/CODE_OF_CONDUCT.md)
* [x] I've included a screenshot or gif (if applicable)
* [x] I have tested the web demo (if applicable):
* Using examples from latest `main` build:
[rerun.io/viewer](https://rerun.io/viewer/pr/6468?manifest_url=https://app.rerun.io/version/main/examples_manifest.json)
* Using full set of examples from `nightly` build:
[rerun.io/viewer](https://rerun.io/viewer/pr/6468?manifest_url=https://app.rerun.io/version/nightly/examples_manifest.json)
* [x] The PR title and labels are set such as to maximize their
usefulness for the next release's CHANGELOG
* [x] If applicable, add a new check to the [release
checklist](https://github.com/rerun-io/rerun/blob/main/tests/python/release_checklist)!

- [PR Build Summary](https://build.rerun.io/pr/6468)
- [Recent benchmark results](https://build.rerun.io/graphs/crates.html)
- [Wasm size tracking](https://build.rerun.io/graphs/sizes.html)

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