Fix missing lasagna-master.js exported function declarations

[Hiroeee]

The PR change is to fix the error below:

An error occurred
We received the following error when we ran your code:
The requested module 'lasagna-master.js' does not provide an export named 'addSecretIngredient'

The exercise is blocked due to the error. If you accept the PR, other users can work on the exercise.

Ref:
https://exercism.org/tracks/javascript/exercises/lasagna-master/

Thank you!

[github-actions]

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[SleeplessByte]

This is not an issue. In lasagna-master, students must write the export function identifier(params) declarations themselves.