Refactor che-operator controller

[tolusha]

Is your task related to a problem? Please describe.

Operator has to update its status more often once error is occurred.
It allows chectl (or another tool) to monitor and report problem earlier than timeout happens.

Describe the solution you'd like

1. Refactor controller to have something like this

	for _, syncItem := range syncItems {
		done, err := syncItem(deployContext)
		if !util.IsTestMode() {
			if err != nil {
				// set status
			} else {
				// clean up status
			}
			if !done {
				return reconcile.Result{}, nil
			}
		}
	}

2. chectl should not fail immediately but allow operator fix problem on the next reconcile loop

Describe alternatives you've considered

N/A

Additional context

[1] Installing Che using chectl with the operator fails earlier when a problem occurs #19284

[tolusha]

Close this issue in favor of #19284