Hi! Joomla! webservices api language somehow defaults to en-GB despite I have set both, front and back languages in J! admin to default to es-ES. Checking the api/languages folder I can see that both languages are there but they are quite little in lang files, I guess that's because most of the lang constant get loaded from the component itself, like in my case, that a table check produces some lang output that gets loaded from my administrator/com_component/language/en-GB, but it should look for administrator/com_component/language/es-ES as as long as I understand, as this is the default admin language set.

Steps to reproduce the issue

• Create a simple copmponent with the basic admin files for inserting data from a model/table
• Create a new webservice plugin and a new api controller and view
• Set Joomla! default language to something different to en-GB

Expected result

Text output from webservice API calls should get translated to default admin lang (es-ES in my case)

Actual result

All text output from webservice API calls got translated to en-GB

System information (as much as possible)

Apache
MariaDB 10.3.34
PHP 7.4.30
J! 4.1.5

Additional comments

Step debugger showing that all lang files loaded in a webservice API request got to en-GB

It seems that the webservices API somehow expects to be multi language