fix: Schedule `.modal("hide")` for transitioning modals #2695

Job	Run time
website / pkgdown	3m 43s
routine / routine	5m 25s
R-CMD-check / setup	50s
R-CMD-check / macOS-latest (4.4.2)	2m 49s
R-CMD-check / windows-latest (4.4.2)	3m 47s
R-CMD-check / ubuntu-latest (devel)	3m 5s
R-CMD-check / ubuntu-latest (4.4.2)	4m 32s
R-CMD-check / ubuntu-latest (4.3.3)	3m 23s
R-CMD-check / ubuntu-latest (4.2.3)	4m 13s
R-CMD-check / ubuntu-latest (4.1.3)	4m 18s
R-CMD-check / ubuntu-latest (4.0.5)	4m 4s
	40m 9s

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