LOG_LEVEL_FILE / LOG_LEVEL_FILE will suppress logging when none

[dbeatty10]

Contributions

• I have read the contribution docs, and understand what's expected of me.

Link to the page on docs.getdbt.com requiring updates

Currently, this is the only page that mentions the LOG_LEVEL_FILE config, but it should also be mentioned here:
https://docs.getdbt.com/reference/global-configs/logs#log-level

What part(s) of the page would you like to see updated?

Two things:

1. Setting the LOG_LEVEL to none will disable logs from being sent to either the console or file logs.
2. To only disable writing to the logs file but keep console logs, set LOG_LEVEL_FILE config to none.

Additional information

No response