[polari] Update Catalan translation

[Jordi Mas <jmas src gnome org>]

commit 361ec3e62bd9525037ce786f7b0fd36d2cfd2afe
Author: Jordi Mas <jmas softcatala org>
Date:   Sun Sep 13 18:25:38 2020 +0200

    Update Catalan translation

 po/ca.po | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/po/ca.po b/po/ca.po
index 3d84e46d..f74abf0e 100644
--- a/po/ca.po
+++ b/po/ca.po
@@ -787,7 +787,7 @@ msgstr "Usuari: %s - Darrera activitat: %s"
 
 #: src/joinDialog.js:232
 msgid "Add Network"
-msgstr "Afegeix la xarxa"
+msgstr "Afegeix una xarxa"
 
 #: src/mainWindow.js:399
 #, javascript-format