On returns disconnect function (#62)

* On returns disconnect function

Zap.Event.On() returns a function to disconnect the listener

* Corrected issues

* Added functionality for client

* Format server

* Format server and client

zap/src/output/luau/client.rs

@@ -618,6 +618,16 @@ impl<'src> ClientOutput<'src> {
 			self.push_line(&format!("event_queue[{id}] = 0"));
 		}
 
+		self.push_line("return function()");
+		self.indent();
+
+		self.push_line(&format!(
+			"table.remove(events[{id}], table.find(events[{id}], {callback}))"
+		));
+
+		self.dedent();
+		self.push_line("end");
+
 		self.dedent();
 		self.push_line("end,");
 	}

zap/src/output/luau/server.rs

@@ -645,11 +645,21 @@ impl<'a> ServerOutput<'a> {
 			self.push_ty(ty);
 		}
 
-		self.push(") -> ())\n");
+		self.push(") -> ()): () -> ()\n");
 		self.indent();
 
 		self.push_line(&format!("table.insert(events[{id}], {callback})"));
 
+		self.push_line("return function()");
+		self.indent();
+
+		self.push_line(&format!(
+			"table.remove(events[{id}], table.find(events[{id}], {callback}))"
+		));
+
+		self.dedent();
+		self.push_line("end");
+
 		self.dedent();
 		self.push_line("end,");
 	}