Add indicator to fresh news posts #491

Job	Run time
Integration test / Integration test	5m 40s
Unit test (DragaliaAPI/DragaliaAPI.Shared.SourceGenerator.Test) / Test	38s
Unit test (DragaliaAPI/DragaliaAPI.Shared.Test) / Test	1m 13s
Unit test (DragaliaAPI/DragaliaAPI.Database.Test) / Test	1m 8s
Unit test (DragaliaAPI/DragaliaAPI.Test) / Test	1m 27s
	10m 6s

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