[PLT-4341] add dnd command (#7694)

i18n/en.json

@@ -499,6 +499,26 @@
     "id": "api.command_away.success",
     "translation": "You are now away"
   },
+  {
+    "id": "api.command_dnd.error",
+    "translation": "Error to retrieve the user status."
+  },
+  {
+    "id": "api.command_dnd.disabled",
+    "translation": "Do Not Disturb is disabled."
+  },
+  {
+    "id": "api.command_dnd.success",
+    "translation": "Do Not Disturb is enabled. You will not receive desktop or mobile push notifications until Do Not Disturb is turned off."
+  },
+  {
+    "id": "api.command_dnd.desc",
+    "translation": "Do not disturb disables desktop and mobile push notifications."
+  },
+  {
+    "id": "api.command_dnd.name",
+    "translation": "dnd"
+  },
   {
     "id": "api.command_channel_header.channel.app_error",
     "translation": "Error to retrieve the current channel."