Move ephemeral storage contents out of container resource page

[tengqm]

This PR moves the ephemeral storage related configuration out of the container resource management page. This proposal is based on the following observations:

• the current container resource management page is too long (1000+ lines) for maintenance.
• the ephemeral storage section is well structured and self-contained.
• the ephemeral storage section itself is 300+ lines, suitable for a dedicated page.
• the configuration of ephemeral storage is a complicated topic in and by itself -- it involves operations for admins (i.e. one FS vs two FS) and for app developers (i.e. container level requests).
• the management of local ephemeral storage is a pain point for many cluster operators. We may envision more details to be added to this topic.

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
Once this PR has been reviewed and has the lgtm label, please assign urvashi0109 for approval. For more information see the Code Review Process.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• content/en/docs/OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[netlify]

✅ Pull request preview available for checking

Name	Link
🔨 Latest commit	eea493b
🔍 Latest deploy log	https://app.netlify.com/projects/kubernetes-io-main-staging/deploys/68e2fdd951195d00088b8af6
😎 Deploy Preview	https://deploy-preview-52628--kubernetes-io-main-staging.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[lmktfy]

/label refactor

[lmktfy]

Thanks for spotting this.

I very strongly recommend moving the page about Local ephemeral storage to live within https://kubernetes.io/docs/concepts/storage/

[tengqm]

Thanks for spotting this.

I very strongly recommend moving the page about Local ephemeral storage to live within https://kubernetes.io/docs/concepts/storage/

Makes sense. Revised.