withBones() and bones_skeleton() attach this for you. It is exported
for HTML that you make yourself with the bones-* classes, which needs
the stylesheet and the script.
Examples
bones_dependency()
#> List of 10
#> $ name : chr "bones"
#> $ version : chr "0.1.0"
#> $ src :List of 1
#> ..$ file: chr "/home/runner/work/_temp/Library/bones/www"
#> $ meta : NULL
#> $ script : chr "bones.js"
#> $ stylesheet: chr "bones.css"
#> $ head : NULL
#> $ attachment: NULL
#> $ package : NULL
#> $ all_files : logi TRUE
#> - attr(*, "class")= chr "html_dependency"
