chore: flan as default model

.env

@@ -30,10 +30,10 @@ REJECT_UNAUTHORIZED=true
 # 'name', 'userMessageToken', 'assistantMessageToken' are required
 MODELS=`[
   {
-    "name": "microsoft/phi-1_5",
+    "name": "Xenova/LaMini-Flan-T5-783M",
     "is_local": true,
-    "is_phi": true,
-    "type": "text-generation",
+    "is_code": false,
+    "type": "text2text-generation",
     "userMessageToken": "<|prompter|>",
     "assistantMessageToken": "<|assistant|>",
     "messageEndToken": "</s>",
@@ -41,15 +41,17 @@ MODELS=`[
     "promptExamples": [
       {
         "title": "What is love?",
-        "prompt": "Describe what love is in a few sentences."
-      }, 
-      {
+        "prompt": "What is love?"
+      }, {
+        "title": "Who is Ada Lovelace?",
+        "prompt": "Who is Ada Lovelace?"
+      }, {
         "title": "What does end-to-end protected mean?",
-        "prompt": "Describe what does end-to-end protected mean in a few sentences."
+        "prompt": "What does end-to-end protected mean?"
       }
     ],
     "parameters": {
-      "temperature": 0.5,
+      "temperature": 0.8,
       "top_p": 0.95,
       "repetition_penalty": 1.2,
       "top_k": 50,
@@ -58,10 +60,10 @@ MODELS=`[
     }
   },
   {
-    "name": "Xenova/LaMini-Flan-T5-783M",
+    "name": "microsoft/phi-1_5",
     "is_local": true,
-    "is_code": false,
-    "type": "text2text-generation",
+    "is_phi": true,
+    "type": "text-generation",
     "userMessageToken": "<|prompter|>",
     "assistantMessageToken": "<|assistant|>",
     "messageEndToken": "</s>",
@@ -69,17 +71,15 @@ MODELS=`[
     "promptExamples": [
       {
         "title": "What is love?",
-        "prompt": "What is love?"
-      }, {
-        "title": "Who is Ada Lovelace?",
-        "prompt": "Who is Ada Lovelace?"
-      }, {
+        "prompt": "Describe what love is in a few sentences."
+      }, 
+      {
         "title": "What does end-to-end protected mean?",
-        "prompt": "What does end-to-end protected mean?"
+        "prompt": "Describe what does end-to-end protected mean in a few sentences."
       }
     ],
     "parameters": {
-      "temperature": 0.8,
+      "temperature": 0.5,
       "top_p": 0.95,
       "repetition_penalty": 1.2,
       "top_k": 50,