When you submit a translation it creates a pull request at github. Once the pull request gets accepted, the changes will be fed back to the translation system. Since pull requests need to be approved manually (to check for errors or spam) it can take a day or two til your changes are live.
You can always see the list of open pull requests on DokuWiki here:
https://github.com/splitbrain/dokuwiki/pulls
I just merged your changes so they should be updated on the translation interface soonish.