not recognized by sphinx gettext?

[ferrine]

I ran into troubles translating the elements created by this extension, running make gettext did not output any of the text elements in carousel container

Steps to reproduce

1. Install all the docs dependencies

poetry env use python3.10
poetry install --with dev
poetry shell
pip install -e .

2. go to docs cd docs
3. run sphinx-build -M gettext "." "build"
4. Verify missing translations (no .//build/gettext/usage.pot)

$ grep 'Title and Description' -R ./
.//extended_features.rst:        Title and Description
.//extended_features.rst:            Title and Description
.//native_features.rst:        Title and Description
.//native_features.rst:            Title and Description
.//usage.rst:        Title and Description
.//usage.rst:                    Title and Description
.//usage.rst:            Title and Description
.//usage.rst:            Title and Description
.//usage.rst:        Title and Description
.//usage.rst:                    Title and Description
.//usage.rst:            Title and Description
.//usage.rst:            Title and Description
Binary file .//build/gettext/.doctrees/usage.doctree matches
Binary file .//build/gettext/.doctrees/native_features.doctree matches
Binary file .//build/gettext/.doctrees/environment.pickle matches
Binary file .//build/gettext/.doctrees/extended_features.doctree matches

And verify the expected pattern of grep

$ grep 'Captions are hidden on mobile viewports' -R ./
.//usage.rst:    Captions are hidden on mobile viewports. A workaround is to use
.//build/gettext/usage.pot:msgid "Captions are hidden on mobile viewports. A workaround is to use :ref:`show_captions_below <extended_features:Captions Below>`."