Fix missing buttons when template_language is a variable (#283)

* Fix missing buttons when `template_language` is a variable

Resolves #279 by evaluating template language expressions before comparing with simulator language in `extract_buttons/2`.

This enables buttons to appear correctly in multi-language flows where `template_language` is set via a variable like `@fields.language`.

* chore: update version

Merge pull request #280 from turnhub/upgrade-expression-to-2.47.3

upgrade to latest expression lib & release new patch version

fix(simulator): include simulation state in error responses (#267)

* fix(simulator): include simulation state in error responses

chore(release): bump version to 5.24.1 (#266)

feat: support translated WhatsApp template body params (#263)

Merge pull request #262 from turnhub/chore/update-version-5234

update version number