feat: if user has no statistics tell the user

Prior to this change we simply sent a weird ass statistics message. This just looked horrible and was pretty confusing.

Author: devcarron

blackjackbot/lang/strings/translations_en.json

@@ -52,5 +52,6 @@
   "reset_stats_confirm_button": "Reset",
   "reset_stats_cancel_button": "Cancel",
   "reset_stats_executed": "Alright, I reset your statistics!",
-  "reset_stats_cancelled": "Okay, I did not reset your statistics!"
+  "reset_stats_cancelled": "Okay, I did not reset your statistics!",
+  "no_stats": "You haven't played yet, there are no statistics for you."
 }

database/statistics.py

@@ -63,7 +63,7 @@ def get_user_stats(user_id):
 
     if played_games == 0:
         # prevent division by zero errors
-        played_games = 1
+        return translate("no_stats")
 
     last_played_formatted = datetime.utcfromtimestamp(last_played).strftime('%d.%m.%y %H:%M')
     win_percentage = round(float(won_games) / float(played_games), 4)