Che throws server exception when OpenShift/k8s recipe cannot be loaded.

[amisevsk]

Description

When an OpenShift/Kubernetes recipe cannot be loaded (e.g. it has an object with non-existent kind section), an internal server error occurs.

Instead a) this error should be handled, and b) a message should be shown to the user with the actual issue (e.g. "No resource type found for: v1#Pod1")

Reproduction Steps

1. Create Che 7 workspace
2. Edit workspace config recipe.content to change kind: Pod to kind: Pod2.
3. Attempt to save changes
4. Internal Server Error occurred,

[amisevsk]

Fixed in #12486