fix: detailed description for system_prompt env var

Author: Classic298

docs/getting-started/env-configuration.md

@@ -3042,7 +3042,7 @@ If `OAUTH_PICTURE_CLAIM` is set to `''` (empty string), then the OAuth picture c
 
 - Type: `bool`
 - Default: `True`
-- Description: When `USER_PERMISSIONS_CHAT_CONTROLS` is enabled, this setting specifically controls the visibility of the "System Prompt" section within the chat controls panel.
+- Description: When `USER_PERMISSIONS_CHAT_CONTROLS` is enabled, this setting specifically controls the visibility of the customizable "System Prompt" section within the chat controls panel, folders and the user settings.
 
 #### USER_PERMISSIONS_CHAT_PARAMS