fix alignment x-axis for gg_km

[Melkiades]

What changes are proposed in this pull request?

• Fix gg_km() axis alignment when annotating risk differences.

#152

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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".

[github-actions]

Unit Tests Summary

  1 files   75 suites   1m 47s ⏱️
 75 tests  74 ✅ 1 💤 0 ❌
225 runs  224 ✅ 1 💤 0 ❌

Results for commit dfaa8be.

♻️ 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
tbl_hierarchical_rate_and_count	💔	$17.50$	$+1.79$	tbl_hierarchical_rate_and_count_works
tbl_hierarchical_rate_by_grade	💔	$6.70$	$+1.75$	tbl_hierarchical_rate_by_grade_works
tbl_shift	💚	$4.14$	$-1.36$	tbl_shift_strata_location_
theme_gtsummary_roche	💔	$0.67$	$+1.91$	theme_gtsummary_roche_works

Results for commit af746fd

♻️ This comment has been updated with latest results.

[github-actions]

Code Coverage Summary

Filename                               Stmts    Miss  Cover    Missing
-----------------------------------  -------  ------  -------  ------------------------------------------------------------------------------------------------
R/add_blank_rows.R                        63       0  100.00%
R/add_difference_row.R                   101       0  100.00%
R/add_hierarchical_count_row.R            33       0  100.00%
R/annotate_gg_km.R                       145       9  93.79%   86-89, 108-112
R/as_ggplot.R                             13      13  0.00%    18-38
R/crane-package.R                          2       2  0.00%    28-29
R/deprecated.R                             6       6  0.00%    15-21
R/forest.R                                68      68  0.00%    35-178
R/get_cox_pairwise_df.R                   50      13  74.00%   68-71, 74-77, 82, 92-95
R/gg_km_utils.R                          102      16  84.31%   94, 134-151, 167
R/gg_km.R                                143      37  74.13%   54-57, 74, 101, 175-180, 183-186, 196-198, 203-204, 238-240, 247-250, 254, 265-269, 282, 284-286
R/label_roche.R                           72       0  100.00%
R/modify_header_rm_md.R                   18       2  88.89%   35-36
R/modify_zero_recode.R                    13       0  100.00%
R/tbl_baseline_chg.R                     212       0  100.00%
R/tbl_hierarchical_rate_and_count.R      148       0  100.00%
R/tbl_hierarchical_rate_by_grade.R       271       3  98.89%   162-164
R/tbl_listing.R                           35       0  100.00%
R/tbl_null_report.R                        9       0  100.00%
R/tbl_roche_subgroups.R                  119     119  0.00%    34-168
R/tbl_roche_summary.R                     64       0  100.00%
R/tbl_shift.R                            116       0  100.00%
R/tbl_survfit_quantiles.R                132       1  99.24%   295
R/tbl_survfit_times.R                     92       0  100.00%
R/theme_gtsummary_roche.R                 78       0  100.00%
R/utils.R                                 36       0  100.00%
TOTAL                                   2141     289  86.50%

Diff against main

Filename              Stmts    Miss  Cover
------------------  -------  ------  -------
R/annotate_gg_km.R       +8       0  +0.36%
TOTAL                    +8       0  +0.05%

Results for commit: dfaa8be

Minimum allowed coverage is 80%

♻️ This comment has been updated with latest results