Tab order fix for create modals, CORE-413

Fixed Tab order for all create modal in LHN except for Vendor object.
@sasmita514 I don't believe we need an additional attribute in the mustache files that is always completely the same as tabindex. I think you could easily save the original tabindex to the uiindex attr here. And then when you're restoring the original tabindex just check if the uiindex attr exists...