Creates a local package library and points R at it by writing R_LIBS_USER
to your ~/.Renviron. Use this when check_setup() reports that your
library sits inside OneDrive. Restart R afterwards for it to take effect.
Usage
use_local_library(
path = file.path(Sys.getenv("LOCALAPPDATA", unset = path.expand("~")), "R", "library")
)