Refactoring all-the-icons functions (#4588) #5486

Job	Run time
test (ubuntu-latest, 27.2, false)	2m 6s
test (ubuntu-latest, 28.2, false)	2m 40s
test (ubuntu-latest, 29.4, false)	2m 24s
test (macos-latest, 28.2, false)	4m 47s
test (macos-latest, 29.4, false)	3m 40s
test (windows-latest, 27.2, false)	3m 5s
test (windows-latest, 28.2, false)	3m 30s
test (windows-latest, 29.4, false)	3m 43s
test (ubuntu-latest, snapshot, true)	1m 36s
test (macos-latest, snapshot, true)	2m 51s
test (windows-latest, snapshot, true)	5m 55s
	36m 17s

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