Scrum 134 change language in tutorial

[paalgf]

Description of your PR.

Definition of Done

Designs

• The new changes are documented in the functional & technical designs.

Development and Testing

• The new functionality has been tested by at least one of the other team members, and all tests are successful.
• The test results are added to the test report documentation.
• The implemented User Story complies with its acceptance criteria.
• The new functionality is reviewed by at least two other team members.
• The new functionality is compliant with the rules of chapter 6.2 Quality in the project plan.
• The translations have been updated. Both the German and Dutch translations are up-to-date.

Unit, component & E2E testing

• Unit tests are written for the general purpose code, e.g. libraries or utility methods
• Component tests are written for standalone components, e.g. Buttons, Alerts
• E2E tests are written for pages, e.g. the home page
• E2E tests: Components use the "testID" attribute for testing

App testing

Build the app and test it on your phone.
This is important, because we've on a regular basis issues with the app on mobile phones, but not with the website.

• Everything works as expected
• No weird usability bugs
• No errors or warnings during the tests
• The browser console does not show any new errors or warnings (e.g. TouchableOpacity is deprecated)

Test app deployment

To prevent issues with the app deployment, it is highly recommended to test the app deployment at least once a day.

• The app is deployed to the test environment
• The build and deployment is successful
• The app is fully working on the test environment

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Please ensure that all the checkboxes are ticked before submitting the pull request.

[luximus-hunter]

@paalgf please merge development into this branch. After that I'll look at it again