fix chem guidebooks not displaying all damages (#19509)

Content.Shared/Localizations/ContentLocalizationManager.cs

@@ -115,7 +115,7 @@ namespace Content.Shared.Localizations
                 <= 0 => string.Empty,
                 1 => list[0],
                 2 => $"{list[0]} and {list[1]}",
-                > 2 => $"{string.Join(", ", list.GetRange(0, list.Count - 2))}, and {list[^1]}"
+                _ => $"{string.Join(", ", list.GetRange(0, list.Count - 1))}, and {list[^1]}"
             };
         }