Bootstrap OCM feature (instead of the current Create local environment)

[ilan-pinto]

Current feature

the Create local environment button is deploying OCM on local kind clusters

Suggested

support bootstrapping both local and remote env

• Change the button name to Create environment or Bootstrap OCM (instead of the current Create local environment)
• After clicking, users will be asked: Create new clusters using Kind?
  • Yes, we go on exactly like we do today.
  • No, we'll present a list of the current contexts from kubeconfig. Users will select one context for the hub and one-to-many contexts for the spokes.

Note:
We already decided that we won't offer kubeconfig contexts management. OCM extension relies on existing mechanism