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mw.Upload.BookletLayout: Make all errors unrecoverable

Description

mw.Upload.BookletLayout: Make all errors unrecoverable

Any error apart from 503's can't be recovered just by hitting 'Try
Again'. The user will _have_ to make some changes before the process
can continue.

Bug: T114130
Change-Id: I8e2d619be5b7e47bc903155c353bc1da36a62bb6