Add "write" to warning about using full name when referencing pin

[rkb965]

Closes #786

See discussion posit-conf-2023/vetiver#31

[juliasilge]

This function is used not only when reading or writing pin contents, but also when calling pin_meta() and pin_exists(). Instead of just adding "write", can we change the message to be more like the one here:

pins-r/R/board_connect.R

Line 467 in 1a1e450

i = "Use a fully specified name including user name like {.val {paste0('julia/', name$name)}}"

[juliasilge]

Thank you so much @rkb965! 🚀

[github-actions]

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