Add title_text argument to tm_t_mult_events() to control dynamic title

[edelarua]

Pull Request

Fixes #1333

[github-actions]

Unit Tests Summary

    1 files     70 suites   1h 12m 5s ⏱️
  727 tests   614 ✅ 113 💤 0 ❌
1 987 runs  1 759 ✅ 228 💤 0 ❌

Results for commit 7cc7109.

♻️ This comment has been updated with latest results.

[github-actions]

Unit Test Performance Difference

Test Suite	$Status$	Time on main	$±Time$	$±Tests$	$±Skipped$	$±Failures$	$±Errors$
shinytest2-tm_a_mmrm	💔	$749.43$	$+1.91$	$0$	$0$	$0$	$0$
shinytest2-tm_g_barchart_simple	💔	$230.40$	$+3.07$	$0$	$0$	$0$	$0$
shinytest2-tm_g_ci	💔	$103.30$	$+1.58$	$0$	$0$	$0$	$0$
shinytest2-tm_g_ipp	💔	$111.63$	$+1.06$	$0$	$0$	$0$	$0$
shinytest2-tm_g_km	💔	$275.42$	$+11.76$	$0$	$0$	$0$	$0$
shinytest2-tm_g_lineplot	💔	$89.02$	$+5.86$	$0$	$0$	$0$	$0$
shinytest2-tm_g_pp_adverse_events	💔	$127.95$	$+8.31$	$0$	$0$	$0$	$0$
shinytest2-tm_g_pp_patient_timeline	💔	$247.62$	$+6.12$	$0$	$0$	$0$	$0$
shinytest2-tm_g_pp_therapy	💔	$198.99$	$+1.85$	$0$	$0$	$0$	$0$
shinytest2-tm_g_pp_vitals	💔	$88.85$	$+1.22$	$0$	$0$	$0$	$0$
shinytest2-tm_t_ancova	💔	$97.45$	$+1.16$	$0$	$0$	$0$	$0$
shinytest2-tm_t_events_by_grade	💔	$91.49$	$+1.12$	$0$	$0$	$0$	$0$
shinytest2-tm_t_pp_laboratory	💔	$127.73$	$+1.12$	$0$	$0$	$0$	$0$
shinytest2-tm_t_shift_by_grade	💔	$79.81$	$+1.29$	$0$	$0$	$0$	$0$
shinytest2-tm_t_tte	💔	$68.29$	$+1.03$	$0$	$0$	$0$	$0$

Results for commit 19663a7

♻️ This comment has been updated with latest results.

[shajoezhu]

lgtm! thanks @edelarua