[PAYSHIP-3554] Adds new PayLater configuration handling

[L3RAZ]

Self-Checks

• [ ] I have performed a self-review of my code.
• [ ] I have updated/added necessary technical documentation in the README file.

JIRA task link

Resolves: PAYSHIP-3554

Summary

QA Checklist Labels

• [ ] Bug fix?
• [ ] New feature?
• [x] Improvement?
• [x] Technical debt?
• [ ] Covered by tests?

QA Checklist

Additional Context

Frontend Changes

[!] Don't forget to include JIRA task number in PR name or branch name. [!]

[!] Don't forget to update changelog.md with new changes. [!]

• [ ] Verify if the version is correct.
• [ ] Update demo environments used for testing.
• [ ] Ensure changelog contains all changes.
• [ ] Update documentation if needed.
• [ ] Test if everything works properly.

[matks]

Target branch 5.0.x -> 5.1.x