Bools and returns super-pr (#53221)

Replaces like 70-80% of 0 and such, as a side effect cleaned up a bunch of returns
Edit: Most left out ones are in mecha which should be done in mecha refactor already
Oh my look how clean it is

Co-authored-by: TiviPlus <TiviPlus>
Co-authored-by: Couls <coul422@gmail.com>

code/game/objects/items/robot/robot_parts.dm

@@ -256,8 +256,8 @@
 			if(!O)
 				return
 			if(M.laws && M.laws.id != DEFAULT_AI_LAWID)
-				aisync = 0
-				lawsync = 0
+				aisync = FALSE
+				lawsync = FALSE
 				O.laws = M.laws
 				M.laws.associate(O)
 
@@ -266,14 +266,14 @@
 			O.custom_name = created_name
 			O.locked = panel_locked
 			if(!aisync)
-				lawsync = 0
+				lawsync = FALSE
 				O.connected_ai = null
 			else
 				O.notify_ai(NEW_BORG)
 				if(forced_ai)
 					O.connected_ai = forced_ai
 			if(!lawsync)
-				O.lawupdate = 0
+				O.lawupdate = FALSE
 				if(M.laws.id == DEFAULT_AI_LAWID)
 					O.make_laws()