You can replace the strings if you want directly, or build new template language files by looking in the translation build scripts: https://github.com/metabase/metabase/tree/master/bin/i18n
But how about you use the POEditor and contribute back to the project instead of doing your own thing?
i need more elaboration steps
i want contribute for non translated strings like my latest github issue in xray page
pls tell me if in documentation will guide me in workflow, like commands and deploys
for example for my need in xray
wich steps and command need to play?