Merge pull request #55 from pangeachat/bot-options

change model key for language level -> difficulty

assets/l10n/intl_es.arb

@@ -2872,8 +2872,8 @@
     "type": "text",
     "placeholders": {}
   },
-  "langaugeLevel": "Nivel de lengua",
+  "languageLevel": "Nivel de lengua",
-  "@langaugeLevel": {
+  "@languageLevel": {
     "type": "text",
     "placeholders": {}
   },

lib/pangea/constants/model_keys.dart

@@ -89,7 +89,7 @@ class ModelKey {
   static const String feedbackLang = "feedback_lang";
 
   // bot options
-  static const String languageLevel = "langauge_level";
+  static const String languageLevel = "difficulty";
   static const String conversationTopic = "conversation_topic";
   static const String keywords = "keywords";
   static const String safetyModeration = "safety_moderation";