rename LayoutKLE to LayoutCustom

scripts/globals/layout_config.gd

@@ -168,7 +168,7 @@ func _load_custom_layouts(path: String) -> void:
 	for file_name in dir.get_files():
 		if file_name.get_extension().to_lower() != "json":
 			continue
-		var layout := LayoutKLE.new(path.path_join(file_name))
+		var layout := LayoutCustom.new(path.path_join(file_name))
 		if layout.has_errors:
 			continue
 		layouts[file_name] = layout

scripts/layouts/layout_custom.gd

@@ -1,4 +1,4 @@
-class_name LayoutKLE extends AbstractLayout
+class_name LayoutCustom extends AbstractLayout
 
 const LABEL_TO_KEYCODE_MAP: Dictionary[String, Key] = {
 	"`": KEY_QUOTELEFT,