Improved profiles by adding 'separator' field to the profile format, improved vicuna-v0 profile, removed default profile from frontend-server cli, updated README

profiles/koala.json

@@ -3,5 +3,6 @@
     "conversation_prefix": "BEGINNING OF CONVERSATION: ",
     "user_keyword": "USER:",
     "assistant_keyword": "GPT:",
+    "separator": " ",
     "stop_sequences": ["</s>"]
 }

profiles/vicuna-v0.json

@@ -1,7 +1,8 @@
 {
     "name": "Vicuna",
-    "conversation_prefix": "A chat between a curious user and a helpful AI assistant. ",
+    "conversation_prefix": "A chat between a curious user and a helpful AI assistant.\n\n",
     "user_keyword": "### Human:",
     "assistant_keyword": "### Assistant:",
+    "separator": "\n",
     "stop_sequences": ["### Human:"]
 }