[Fleet] k8 instructions is lost after agent flyout redesign

[jen-huang]

K8 instructions were added in: #127703

Flyout redesign was done in: #128381

After the redesign got merged, the K8 instructions including section for downloading the manifest is completely lost:

[elasticmachine]

Pinging @elastic/fleet (Team:Fleet)

[criamico]

I checked out the commit in after the PR was merged and the step with the instructions for kubernetes wasn't there. So I guess it got lost at some point and that's why I didn't pick those changes when I rebased my PR:

By looking at the screenshots in the PR description I see that there is a download section that is completely missing and should be added only when isK8s is true
https://user-images.githubusercontent.com/26270880/158374471-ab192255-0b05-4b40-add2-9d5dcb383fbc.png
https://user-images.githubusercontent.com/26270880/158374477-dfa6259f-568a-4784-882a-dd3be49a1197.png

[amolnater-qasource]

Hi @jen-huang
We have revalidated this issue on latest 8.2 Snapshot and found it fixed now.

• Kubernetes instructions are now available under Add Agent flyout when kubernetes integration is added to the policy.

Build details:
BUILD: 51972
COMMIT: 44f2776

Screenshots:

Hence marking this as QA:Validated.
Thanks