[IMP] shopfloor: Improve message for location content transfer items

[rousseldenis]

In case of content transfer line by line, user wants to be recalled which origin location he comes from if he wants to transfer partially and put the remaining products back to source (e.g.: no more space on destination location)

@phschmidt @jbaudoux @sbejaoui @lmignon

An easy one :sweat_smile: