add `CollectionCreatorModal` that replaces `buildCollectionModal` #1137

Job	Run time
build-client / build-client	9m 52s
setup-selenium / setup_chromedriver	6s
Test (3.8, 0)	45m 51s
Test (3.8, 1)	54m 24s
Test (3.8, 2)	54m 3s
	2h 44m 16s

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