fix in ard_stack() when calls to functions were namespaced

[ddsjoberg]

What changes are proposed in this pull request?

• Bug fix in ard_stack() when calls to functions were namespaced. (cards::ard_stack() does not work if the cards package not attached #242)

Reference GitHub issue associated with pull request. e.g., 'closes #'
closes #242

@bzkrouse have you come across a method for testing if a function works if the package is not loaded? That could be a good test to add too.

---

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".

[github-actions]

Code Coverage Summary

Filename                       Stmts    Miss  Cover    Missing
---------------------------  -------  ------  -------  --------------------------
R/apply_fmt_fn.R                  83      16  80.72%   97-104, 186-193
R/ard_attributes.R                33       0  100.00%
R/ard_categorical.R              348      16  95.40%   223, 383-384, 540-555, 589
R/ard_complex.R                   34       0  100.00%
R/ard_continuous.R               176       4  97.73%   118, 200-201, 299
R/ard_dichotomous.R               66       2  96.97%   60, 146
R/ard_hierarchical.R              83       0  100.00%
R/ard_missing.R                   21       0  100.00%
R/ard_stack.R                     70       1  98.57%   103
R/as_nested_list.R                41       0  100.00%
R/bind_ard.R                      22       3  86.36%   51-53
R/check_ard_structure.R           39       6  84.62%   31, 55-59
R/default_stat_labels.R           18       0  100.00%
R/eval_capture_conditions.R       18       0  100.00%
R/get_ard_statistics.R            16       1  93.75%   75
R/nest_for_ard.R                  70       1  98.57%   56
R/print.R                         72       0  100.00%
R/print_ard_conditions.R          75      66  12.00%   60-176
R/process_selectors.R            126       0  100.00%
R/replace_null_statistic.R        11       0  100.00%
R/round5.R                         1       0  100.00%
R/selectors.R                     14       0  100.00%
R/shuffle_ard.R                  134       1  99.25%   268
R/summary_functions.R             58       1  98.28%   91
R/tidy_ard_order.R                25       0  100.00%
R/tidy_as_ard.R                   39      11  71.79%   88-98
R/utils.R                         24       0  100.00%
TOTAL                           1717     129  92.49%

Diff against main

Filename         Stmts    Miss  Cover
-------------  -------  ------  -------
R/ard_stack.R      +10       0  +0.24%
TOTAL              +10       0  +0.04%

Results for commit: ccc2a9c

Minimum allowed coverage is 80%

♻️ This comment has been updated with latest results

[github-actions]

Unit Tests Summary

  1 files   87 suites   12s ⏱️
 85 tests  53 ✅ 32 💤 0 ❌
174 runs  128 ✅ 46 💤 0 ❌

Results for commit ccc2a9c.

♻️ 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
ard_stack	👶		$+0.01$	ard_stack_complex_call_error
ard_stack	👶		$+0.00$	ard_stack_works_with_namespaced_functions

Results for commit c714246

♻️ This comment has been updated with latest results.

[bzkrouse]

Good catch and nice solution!!