Refactoring all-the-icons functions #5446

Job	Run time
test (ubuntu-latest, 27.2, false)	2m 5s
test (ubuntu-latest, 28.2, false)	2m 25s
test (ubuntu-latest, 29.4, false)	2m 24s
test (macos-latest, 28.2, false)	3m 56s
test (macos-latest, 29.4, false)	5m 37s
test (windows-latest, 27.2, false)	3m 6s
test (windows-latest, 28.2, false)	3m 37s
test (windows-latest, 29.4, false)	3m 37s
test (ubuntu-latest, snapshot, true)	1m 19s
test (macos-latest, snapshot, true)	2m 46s
test (windows-latest, snapshot, true)	5m 54s
	36m 46s

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