withr::with_dir() not necessary if 'evaluate chunks in project directory' option set

[Aariq]

tflow/inst/templates/blank.Rmd

Line 22 in 23be655

# withr::with_dir(here::here(), {

So I recently realized a maybe simpler way to deal with tar_load() not working when running chunks interactively in .Rmd files. If preferences for RStudio are set to evaluate chunks in project directory, tar_load() works fine without wrapping it in withr::with_dir(). It doesn't seem like there's a way to do that on a project-level or file level though, so maybe this should stay in the template anyways. I know I was the one that added this bit of code to the template, but I'm actually not using this anymore and I just wanted to share my new workaround.

[Aariq]

[Aariq]

followup to #5