feat: add ALLOW_ADMIN_EXPORT to disable exporting of chats and the db

backend/main.py

@@ -52,6 +52,7 @@ from config import (
     GLOBAL_LOG_LEVEL,
     SRC_LOG_LEVELS,
     WEBHOOK_URL,
+    ALLOW_ADMIN_EXPORT,
 )
 from constants import ERROR_MESSAGES
 
@@ -207,6 +208,7 @@ async def get_app_config():
         "default_models": webui_app.state.DEFAULT_MODELS,
         "default_prompt_suggestions": webui_app.state.DEFAULT_PROMPT_SUGGESTIONS,
         "trusted_header_auth": bool(webui_app.state.AUTH_TRUSTED_EMAIL_HEADER),
+        "allow_admin_export": ALLOW_ADMIN_EXPORT,
     }