docs: add more info about downloadItem.setSavePath api (#25402)
docs: add more info about downloadItem.setSavePath api (#25402)

* docs: add more info about downloadItem.setSavePath api

add more info about downloadItem.setSavePath api

* Update docs/api/download-item.md

^_^

Co-authored-by: Samuel Attard <8c69fe4e0e04067c7125a0296b13bb236bca7ffc@gmail.com>

Co-authored-by: Samuel Attard <8c69fe4e0e04067c7125a0296b13bb236bca7ffc@gmail.com>
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