Add Default kubeconfig File at the top of the cluster connected to

[mohitsuman]

• Add Default kubeConfig File at the top before the cluster information in Application Explorer View
• Provide the path of the file
• Add an action to open kubeconfig in the editor (this happens once the user hovers over it)

[dgolovin]

It is not always single file, Kubernetes config could be stored in multiple files.
Here is the link to how k8s nodejs client doing it
https://github.com/kubernetes-client/javascript/blob/f215e3dd6112261a960edb5e6401e13898de8384/src/config.ts#L302