Show current context only if it is active

[mohitsuman]

Currently with odov3 workflow, we have updated the Application Explorer. It shows the current context in kubeconfig.

But the current context is kubeconfig might be very old and not active.

• So the extension should detect if the context is active.
• Show the active context or else show the Login to Cluster, and Create Component buttons.

Eg. This shows very old kubeconfig current context

[mohitsuman]

As discussed, once the extension is activated, we showcase the buttons showing the following:

• Login with Current context ( This should be shown if the current context is active)
• Login to cluster
• Add cluster

[dgolovin]

@mohitsuman fixed in main.