Squashed commit of the following:

[mlforcada]

commit b9a3253
Author: Mikel L. Forcada [email protected]
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 [email protected]
Date: Tue Aug 12 09:53:08 2025 +0200

Traduït tot, i moltes revisions

[github-actions]

Errors and warnings found by git-po-helper in workflow #1030:

------------------------------------------------------------------------------
INFO [po/ca.po@86aa8b3]	5857 translated messages. 
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ERROR commit 86aa8b3: subject ("Squashed ...") does not have prefix "l10n:" 
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ERROR commit 86aa8b3: cannot find "Signed-off-by:" signature 
ERROR commit 86aa8b3: line #7 ("    196 new ...") is too long: 95 > 72 
INFO checking commits: 0 passed, 1 failed.        
------------------------------------------------------------------------------
INFO downloading pot file from https://github.com/git-l10n/pot-changes/raw/pot/master/po/git.pot 

ERROR: fail to execute "git-po-helper check-commits"

[jiangxin]

Closing this one in favor of the new PR #864