.atl / .at reworked

src/NadekoBot/data/strings/commands/commands.en-US.yml

@@ -1306,7 +1306,7 @@ poll:
 autotranslang:
   desc: "Sets your source and target language to be used with `{0}at`. Specify no parameters to remove previously set value."
   args:
-    - "en>fr"
+    - "en fr"
 autotranslate:
   desc: "Starts automatic translation of all messages by users who set their `{0}atl` in this channel. You can set \"del\" parameter to automatically delete all translated user messages."
   args:

src/NadekoBot/data/strings/responses/responses.en-US.json

@@ -450,6 +450,7 @@
   "atl_set": "Your auto-translate language has been set to {0}>{1}",
   "atl_started": "Started automatic translation of messages on this channel.",
   "atl_stopped": "Stopped automatic translation of messages on this channel.",
+  "atl_not_enabled": "Automatic translation is not enabled on this channel.",
   "bad_input_format": "Bad input format, or something went wrong.",
   "card_not_found": "Couldn't find that card.",
   "catfact": "fact",