Improve cluster requirements page's OS requirements

[embik]

https://docs.kubermatic.com/kubermatic/v2.22/architecture/requirements/cluster-requirements/ is kind of a confusing page. It lists OS requirements for the nodes in master clusters - Why? KKP should run on any Kubernetes cluster, we do not interact with the underlying node. IMHO this should be removed.

Seed clusters are not mentioned at all, but they should. We should also point out additional resource requirements with MLA.

The user cluster requirements are also very unclear. Why give a list of OSes here? We only allow deploying with specifics OSes, but that is documented in https://docs.kubermatic.com/kubermatic/v2.22/architecture/compatibility/os-support-matrix/. This section should only link to that, at best. Giving resource requirements for user clusters is also weird, we should just mention that node sizing shouldn't be under a certain threshold. But KKP doesn't really require any specific set of resources in a user cluster, most of the deployed system components are DaemonSets.

This page should also mention KubeOne as the recommended installer IMHO.

[kubermatic-bot]

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[embik]

/remove-lifecycle stale

[kubermatic-bot]

Issues go stale after 90d of inactivity.
After a furter 30 days, they will turn rotten.
Mark the issue as fresh with /remove-lifecycle stale.

If this issue is safe to close now please do so with /close.

/lifecycle stale

[embik]

/remove-lifecycle stale