Fixes #8258.

Main correction is the removal of Topic() in code/game/machinery/computer/computer.dm.
Issue introduced in #7617 where I stated multiple times this Topic()-return value was incorrect.

Ensures that computers return the correct value after the ..() check.

code/game/machinery/computer/security.dm

@@ -208,7 +208,7 @@ I can't be bothered to look more of the actual code outside of switch but that p
 What a mess.*/
 /obj/machinery/computer/secure_data/Topic(href, href_list)
 	if(..())
-		return
+		return 1
 	if (!( data_core.general.Find(active1) ))
 		active1 = null
 	if (!( data_core.security.Find(active2) ))
@@ -612,4 +612,4 @@ What a mess.*/
 
 /obj/machinery/computer/secure_data/detective_computer
 	icon = 'icons/obj/computer.dmi'
-	icon_state = "messyfiles"
+	icon_state = "messyfiles"