chore: adjust default OpenAI top_p parameter

Author: splinesreticulating

.env.example

@@ -8,7 +8,7 @@ HISTORY_LOOKBACK_HOURS=6
 OPENAI_API_KEY=your-openai-api-key
 OPENAI_MODEL=gpt-4
 OPENAI_TEMPERATURE=0.5 # Between 0.0 (robotic or repetitive) and 1.0 (random or flippant)
-OPENAI_TOP_P=0.9 # Between 0.0 (most likely) and 1.0 (most diverse)
+OPENAI_TOP_P=0.8 # Between 0.0 (most likely) and 1.0 (most diverse)
 OPENAI_FREQUENCY_PENALTY=0.2 # Between 0.0 (no penalty) and 1.0 (strong penalty)
 OPENAI_PRESENCE_PENALTY=0.2 # Between 0.0 (no penalty) and 1.0 (strong penalty)