Error rates: Differentiate unexpected error/bug Vs expected error/user error

[ravipal]

In general, any error thrown during command execution is reported as error and 'Report an issue' button is offered to user. But some of the errors are expected like user tries to delete an image that is in use or try to start/stop container but no container matches the required state exists and so on.
We need to a better way to categorize the error and offer 'Report an issue' button only on unknown/unexpected error.