[SRVKS-1100] Add docs on debugging Serverless applications

[rh-max]

Version(s):
serverless-docs-1.32+

Issue:
https://issues.redhat.com/browse/SRVKS-1100

Link to docs preview:
https://72687--ocpdocs-pr.netlify.app/openshift-serverless/latest/knative-serving/debugging-serverless-applications

QE review:

• QE has approved this change.

[ocpdocs-previewbot]

🤖 Thu Mar 14 16:45:20 - Prow CI generated the docs preview:
https://72687--ocpdocs-pr.netlify.app

[rh-max]

@skonto @ReToCode Hi, could you PTAL? Thank you.

[ReToCode]

I'd probably update the order of the blocks to their likelihood:

1. Terminal (assuming this is on the laptop)
2. Pod
3. Revision
4. Ingress
5. Route
6. Istio routing

[rh-max]

/label serverless
/label peer-review-needed

[rh-max]

/label merge-review-needed
To the merge reviewer: please do not merge on completion, we are waiting for the GA confirmation. Thank you.

[rh-max]

@adellape To your note about additional resources:

• we've changed the additional resources that we are using here
• now both of them are about a RH product/project
• the Maistra one was explicitly agreed to by the responsible person on Serverless (Sherman Horton)
  This should clear uncertainties.

[adellape]

Confirmed with Max via Slack that this is ready for merge.

[openshift-ci]

@rh-max: all tests passed!

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[adellape]

/cherrypick serverless-docs-1.32

[openshift-cherrypick-robot]

@adellape: new pull request created: #73191

In response to this:

/cherrypick serverless-docs-1.32

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