updated translation

ui-ngx/src/assets/locale/locale.constant-en_US.json

@@ -1393,7 +1393,7 @@
         "copyId": "Copy device Id",
         "copyAccessToken": "Copy access token",
         "copy-mqtt-authentication": "Copy MQTT credentials",
-        "transportCommandCopiedMessage": "Transport Command has been copied to clipboard",
+        "transport-command-copied-message": "Transport Command has been copied to clipboard",
         "telemetry-commands-help-link": "In order to publish telemetry data to (<a href='{{helpLink}}' target='_blank'>ThingsBoard device</a>) with credentials of the current device you can use the following commands.",
         "telemetry-command-setup-step": "1. Setup:",
         "telemetry-command-send-step": "2. Send command:",