Squashed commit of the following:

commit b9a3253
Author: Mikel L. Forcada <mlf@elitebook.home>
Date:   Tue Aug 12 10:52:35 2025 +0200

    196 new Catalan strings, general revision, msgcat --no-location, and git-po-helper revision

commit b6af89e
Author: Mikel L. Forcada <mlf@elitebook.home>
Date:   Tue Aug 12 09:53:08 2025 +0200

    Traduït tot, i moltes revisions

Author: Mikel L. Forcada