Fix _button.text and _button.ariaLabel incorrectly marked as translatable #128

Subject of the issue/enhancement/features

_tutor._button.text and _tutor._button.ariaLabel in both component.schema.json and course.schema.json are marked "translatable": true, but their defaults are Handlebars template references ({{_globals._extensions._tutor.hideFeedback}}). Because the translation export resolves defaults, these fields appear in the CSV as the raw template string rather than an actual translatable value, polluting every export with content that needs to be manually removed before sending to translators.

The genuinely translatable string — hideFeedback in course.schema.json — is already correctly marked "translatable": true. The four _button fields should be "translatable": false.

Your environment

• version: adapt-contrib-tutor 4.7.0 / Framework 5.48.2
• which browser and its version: N/A (schema issue)
• device(s) + operating system(s): N/A

Steps to reproduce

1. Install adapt-contrib-tutor into an Adapt course
2. Run grunt translate:export --format=csv
3. Open the exported CSV
4. Search for rows containing {{_globals._extensions._tutor.hideFeedback}}

Expected behaviour

Only genuinely translatable strings should appear in the export. Handlebars template references that resolve at runtime should not be included.

Actual behaviour

_tutor._button.text and _tutor._button.ariaLabel appear twice in the CSV (once from component.schema.json, once from course.schema.json) as the raw string {{_globals._extensions._tutor.hideFeedback}}. These are not translatable values and must be manually removed before the CSV can be sent to translators.

Suggested Fix

The fix in each case is changing "translatable": true to "translatable": false.