replace 'leafpad' with 'l3afpad' (#3890)

seemed like the most obvious replacement but maybe another one would suffice

Author: Tertle950

archinstall/default_profiles/desktops/lxqt.py

@@ -20,7 +20,7 @@ def packages(self) -> list[str]:
 			'oxygen-icons',
 			'xdg-utils',
 			'ttf-freefont',
-			'leafpad',
+			'l3afpad',
 			'slock',
 		]