Closes #947 Test onboarding settings

[Khadreal]

Description

Fixes (https://github.com/wp-media/backwpup-pro/issues/947)

Type of change

• New feature (non-breaking change which adds functionality).
• Bug fix (non-breaking change which fixes an issue).
• Enhancement (non-breaking change which improves an existing functionality).
• Breaking change (fix or feature that would cause existing functionality to not work as before).
• Sub-task of #(issue number)
• Chore
• Release

Detailed scenario

Check the issue

What was tested

Unchecked options during onboarding and confirm the settings were as it-is after onboarding.

How to test

Run the command npm run test:bwpupsmoke

Technical description

Documentation

Add new scenarios and steps

Mandatory Checklist

Code validation

• I validated all the Acceptance Criteria. If possible, provide screenshots or videos.
• I triggered all changed lines of code at least once without new errors/warnings/notices.
• I implemented built-in tests to cover the new/changed code.

Code style

• I wrote a self-explanatory code about what it does.
• I protected entry points against unexpected inputs.
• I did not introduce unnecessary complexity.
• Output messages (errors, notices, logs) are explicit enough for users to understand the issue and are actionnable.

Unticked items justification

n/a

[Khadreal]

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