Move third-party S3 and backend selection to Configure step#3

TimothyAsirJeyasing wants to merge 2 commits into

rh-8574-mirrorpeer-pre-pair-validation-redesignTimothyAsirJeyasing/odf-console:rh-8574-mirrorpeer-pre-pair-validation-redesignfrom

agnostic-dr-wizard-configure-stepTimothyAsirJeyasing/odf-console:agnostic-dr-wizard-configure-stepCopy head branch name to clipboard