fix: issue with some translation in payment buttons

[Benjamin-Freoua-Alma]

Reason for change

Linear task

Code changes

We created an helper to test some function with translations. But Prestashop doesn't handle the translation is the function doesn't named ->l() I renamed our function with ->l() to handle all our translation

How to test

As a reviewer, you are encouraged to test the PR locally.

Install the FR language un the store Translation > Add / Update a language > Add French
Install our module and enable de Pay later (+15/+30)
Go to the front, change the langue in FR
Go to the checkout, select a pay later and see if the payment button pay later is well translated.

Checklist for authors and reviewers

• The title of the PR uses business wording, not technical jargon, for the changelog readers to understand it
• The PR implements the changes asked in the referenced task / issue
• The automated tests are compliant with the testing strategy
• The tests are relevant, and cover the corner/error cases, not only the happy path
• You understand the impact of this PR on existing code/features

Non applicable

• The changes include adequate logging and Datadog traces
• Documentation is updated (API, developer documentation, ADR, Notion...)

[github-actions]

⏳E2E tests are currently running.
➡️ You can follow their progression here.

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
11.1% Duplication on New Code

See analysis details on SonarCloud

[github-actions]

❌ E2E tests have failed.
➡️ You can find the results here.