Simplify capybara wait time helper #2252

Job	Run time
build	3m 39s
build	3m 39s
test (ruby 3.2 / rails ~> 7.2 / blacklight ~> 8.0 )	10m 56s
test (ruby 3.2 / rails ~> 7.2 / blacklight ~> 8.0 )	10m 56s
test (ruby 3.3 / rails ~> 7.2 / blacklight ~> 8.0 )	11m 31s
test (ruby 3.3 / rails ~> 7.2 / blacklight ~> 8.0 )	11m 31s
test (ruby 3.3 / rails ~> 8.0 / blacklight ~> 8.0 Rails 8)	11m 48s
test (ruby 3.3 / rails ~> 8.0 / blacklight ~> 8.0 Rails 8)	14m 17s
test (ruby 3.3 / rails ~> 7.2 / blacklight ~> 8.0 Bootstrap 5)	11m 44s
test (ruby 3.3 / rails ~> 7.2 / blacklight ~> 8.0 Bootstrap 5)	11m 44s
test (ruby 3.2 / rails 7.1.4 / blacklight ~> 8.0 Rails 7.1)	12m 4s
test (ruby 3.2 / rails 7.1.4 / blacklight ~> 8.0 Rails 7.1)	11m 1s
test (ruby 3.2 / rails ~> 7.1.4 / blacklight ~> 8.0 JS bundling (esbuild) Bootstrap 4)	10m 59s
test (ruby 3.2 / rails ~> 7.1.4 / blacklight ~> 8.0 JS bundling (esbuild) Bootstrap 4)	10m 59s
test (ruby 3.3 / rails ~> 7.2 / blacklight ~> 8.0 JS bundling (esbuild) Bootstrap 5)	11m 1s
test (ruby 3.3 / rails ~> 7.2 / blacklight ~> 8.0 JS bundling (esbuild) Bootstrap 5)	11m 1s
	2h 48m 50s

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