list all message shown when there is no item.

[nus-pe-bot]

I think it would be better to tell the user more clearly that he has not added any items if there are no items when enter list all.

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_{[original: nus-cs2113-AY2021S1/pe-interim#3083]}

[hermanthong]

Team's Response

Noted, we will make it clearer in the subsequent versions.

Duplicate status (if any):

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