feat: [DHIS2-14275] Support custom icons #984

Job	Run time
prerequisites	9s
cypress (2.38, 1)	8m 49s
cypress (2.38, 2)	8m 52s
cypress (2.38, 3)	8m 43s
cypress (2.38, 4)	8m 51s
cypress (2.38, 5)	8m 47s
cypress (2.39, 1)	9m 9s
cypress (2.39, 2)	9m 3s
cypress (2.39, 3)	9m 7s
cypress (2.39, 4)	9m 4s
cypress (2.39, 5)	9m 14s
cypress (2.40, 1)	9m 43s
cypress (2.40, 2)	9m 50s
cypress (2.40, 3)	9m 48s
cypress (2.40, 4)	9m 37s
cypress (2.40, 5)	9m 40s
call-e2e-tests-result / e2e-tests-success	1s
	2h 18m 27s

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