update_ard_fmt_fn needs some love

[kimjj93]

Fixes #449

Added vignette for update_ard_fmt_fun and update_ard_stat_label under Articles

What changes are proposed in this pull request?

• Style this entry in a way that can be copied directly into NEWS.md. (#, @)

Provide more detail here as needed.

Reference GitHub issue associated with pull request. e.g., 'closes #'

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Pre-review Checklist (if item does not apply, mark is as complete)

• All GitHub Action workflows pass with a ✅
• PR branch has pulled the most recent updates from master branch: usethis::pr_merge_main()
• If a bug was fixed, a unit test was added.
• Code coverage is suitable for any new functions/features (generally, 100% coverage for new code): devtools::test_coverage()
• Request a reviewer

Reviewer Checklist (if item does not apply, mark is as complete)

• If a bug was fixed, a unit test was added.
• Run pkgdown::build_site(). Check the R console for errors, and review the rendered website.
• Code coverage is suitable for any new functions/features: devtools::test_coverage()

When the branch is ready to be merged:

• Update NEWS.md with the changes from this pull request under the heading "# cards (development version)". If there is an issue associated with the pull request, reference it in parentheses at the end update (see NEWS.md for examples).
• All GitHub Action workflows pass with a ✅
• Approve Pull Request
• Merge the PR. Please use "Squash and merge" or "Rebase and merge".

Optional Reverse Dependency Checks:

Install checked with pak::pak("Genentech/checked") or pak::pak("checked")

# Check dev versions of `cardx`, `gtsummary`, and `tfrmt` which are in the `ddsjoberg` R Universe
Rscript -e "options(checked.check_envvars = c(NOT_CRAN = TRUE)); checked::check_rev_deps(path = '.', n = parallel::detectCores() - 2L, repos = c('https://ddsjoberg.r-universe.dev', 'https://cloud.r-project.org'))"

# Check CRAN reverse dependencies but run tests skipped on CRAN
Rscript -e "options(checked.check_envvars = c(NOT_CRAN = TRUE)); checked::check_rev_deps(path = '.', n = parallel::detectCores() - 2, repos = 'https://cloud.r-project.org')"

# Check CRAN reverse dependencies in a CRAN-like environment
Rscript -e "options(checked.check_envvars = c(NOT_CRAN = FALSE), checked.check_build_args = '--as-cran'); checked::check_rev_deps(path = '.', n = parallel::detectCores() - 2, repos = 'https://cloud.r-project.org')"

[github-actions]

Unit Tests Summary

  1 files  203 suites   1m 1s ⏱️
203 tests 118 ✅  85 💤 0 ❌
454 runs  338 ✅ 116 💤 0 ❌

Results for commit 847c41c.

♻️ This comment has been updated with latest results.

[github-actions]

Unit Test Performance Difference

Additional test case details

Test Suite	$Status$	Time on main	$±Time$	Test Case
add_calculated_row	💚	$1.24$	$-1.20$	add_calculated_row_x_
apply_fmt_fun	💔	$0.04$	$+1.25$	apply_fmt_fun_works
ard_hierarchical	💔	$6.25$	$+1.06$	ard_hierarchical_works_without_by_variables
ard_stack	💚	$2.19$	$-1.18$	ard_stack_works
ard_stack_hierarchical	💔	$10.34$	$+2.01$	ard_stack_hierarchical_variables_
ard_summary	👶		$+0.04$	unnamed
ard_summary	💔	$0.43$	$+6.10$	ard_summary_works
shuffle_ard	💀	$0.04$	$-0.04$	unnamed
shuffle_ard	💚	$6.88$	$-6.84$	shuffle_trim_works

Results for commit 1df0e20

♻️ This comment has been updated with latest results.