[SUBS] Re-check what transactions should be created after clicking on the review step continue button

[elvijsTDL]

Currently if a user would run into an error state , e.g. trying to modify a stream that does not exist anymore the widget would still keep on trying to do the same transaction , blocking the user until they decide to refresh the page , IMO it should re-check if the transaction creating during checkout is still valid and change to "create stream" in this scenario unblocking the users

Screen.Recording.2023-09-12.at.13.53.20.mov