Add missing comma to translation files

custom_components/tuya_local/translations/es.json

@@ -381,7 +381,7 @@
                     "keep_warm": "Mantener caliente",
                     "preheat": "Precalentar"
                 }
-            }
+            },
             "timer": {
                 "name": "Temporizador"
             },

custom_components/tuya_local/translations/fr.json

@@ -341,7 +341,7 @@
                     "keep_warm": "Garder au chaud",
                     "preheat": "Préchauffer"
                 }
-            }
+            },
             "timer": {
                 "name": "Minuteur",
                 "state": {

custom_components/tuya_local/translations/zh-Hant.json

@@ -341,7 +341,7 @@
                     "keep_warm": "保溫",
                     "preheat": "預熱"
                 }
-            }
+            },
             "timer": {
                 "name": "計時器",
                 "state": {