Reorganize the wizard steps to prioritize "Receivers" (step 1)
before "Message and Options" (step 3). Update `_currentStep`
logic, conditional checks, and validation to reflect the new
step order. Adjust `GetStepTitle` and `GetStepDescription`
methods to align with the updated step titles and descriptions.
Ensure user input handling and step-skipping behavior are
consistent with the new flow.