Makes all anchored changes use setAnchored(), COMSIG_MOVABLE_SETANCHORED now only sent if an AM's anchored var has changed for more reliable usage. (#52254)

* Converts everything to use setAnchored() + other fixes

* Fixed singulo debug

* singulo again

* forgot to move the vv_edit proc

* caught that this time :)

* changes

* Update code/game/atoms_movable.dm

Co-authored-by: Rohesie <rohesie@gmail.com>

Co-authored-by: Rohesie <rohesie@gmail.com>

code/modules/admin/verbs/debug.dm

@@ -594,10 +594,10 @@ But you can call procs that are of type /mob/living/carbon/human/proc/ for that
 
 	for(var/obj/machinery/field/generator/F in GLOB.machines)
 		if(F.active == 0)
+			F.set_anchored(TRUE)
 			F.active = 1
 			F.state = 2
 			F.power = 250
-			F.anchored = TRUE
 			F.warming_up = 3
 			F.start_fields()
 			F.update_icon()