fix(filepicker): not closing on close #826

Job	Run time
spinner (1.22, ubuntu-latest)	13s
test (1.22, ubuntu-latest)	13s
examples (1.22, ubuntu-latest)	29s
spinner (1.22, macos-latest)	12s
test (1.22, macos-latest)	17s
examples (1.22, macos-latest)	41s
spinner (1.22, windows-latest)	3m 0s
test (1.22, windows-latest)	2m 27s
examples (1.22, windows-latest)	2m 55s
spinner (stable, ubuntu-latest)	21s
test (stable, ubuntu-latest)	9s
examples (stable, ubuntu-latest)	31s
test (stable, macos-latest)	18s
spinner (stable, macos-latest)	14s
examples (stable, macos-latest)	51s
spinner (stable, windows-latest)	2m 41s
test (stable, windows-latest)	3m 17s
examples (stable, windows-latest)	2m 51s
	21m 40s

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