Split arrays in yaml so that the first line is blank to avoid messy collapse behavior

[jsoref]

Summary

Currently the collapse behavior of something like this is bad:

      containers:
        - command:
            - /shared/argocd-dex
            - rundex
          env:
            - name: ARGOCD_DEX_SERVER_LOGFORMAT
              valueFrom:
                configMapKeyRef:
                  key: dexserver.log.format
                  name: argocd-cmd-params-cm
                  optional: true

There's a collapse widget to the left of - command: but it's ambiguous as to what it should collapse, it could collapse the array element, or it could collapse the command key.

If the yaml was automatically presented like this, then one could independently and unambiguously collapse the - or command::

      containers:
        -
          command:
            - /shared/argocd-dex
            - rundex
          env:
            - name: ARGOCD_DEX_SERVER_LOGFORMAT
              valueFrom:
                configMapKeyRef:
                  key: dexserver.log.format
                  name: argocd-cmd-params-cm
                  optional: true

Motivation

Typically the first item in containers: is something that would itself be collapsible, and it's incredibly frustrating to end up collapsing the entire container instead of just the first property for the container.

If the yaml was automatically presented like this, then one could easily collapse the various keys of the container without collapsing the entire container

https://cd.apps.argoproj.io/applications/argo-cd?resource=kind%3APod&node=apps%2FDeployment%2Fargocd%2Fargocd-dex-server%2F0 before:

after:

Proposal

When encountering an array where the first item in the array is itself collapsible, put the first item on its own line.

[aali309]

I will look into this.

[andrii-korotkov-verkada]

One alternative - show two arrows on the same line, where the left one collapses - and the right one collapses command (or similar). I think an empty line with just - is not that visually appealing and it's not a display style I've seen anywhere for Yaml.