[Feature Request] Add TanhModuleConfig

[bsprenger]

Motivation

Similar to #3249, I'm hoping to continue fleshing out the trainers framework to include config dataclasses for the modules I am using. The next one I have found to be missing for my needs is TanhModuleConfig.

Solution

PR proposal here: #3255

Alternatives

This is a fairly straightforward feature. Not sure there is a need for alternatives

Additional context

Checklist

• I have checked that there is no similar issue in the repo (required)