icons: add missing comma

custom_components/tuya_local/icons.json

@@ -2,7 +2,7 @@
     "entity": {
         "binary_sensor": {
             "direction": {
-                "default": "mdi:arrow-left-right"
+                "default": "mdi:arrow-left-right",
                 "state": {
                     "off": "mdi:home-import-outline",
                     "on": "mdi:home-export-outline"