Icons: add missing icon for time_remaining sensor

custom_components/tuya_local/icons.json

@@ -81,6 +81,14 @@
                 }
             }
         },
+        "sensor": {
+            "time_remaining": {
+                "default": "mdi:timer",
+                "state": {
+                    0: "mdi:timer-remove"
+                }
+            }
+        },
         "switch": {
             "anti_frost": {
                 "default": "mdi:snowflake-melt"