[gnome-shell] Update Catalan translation

[Jordi Mas <jmas src gnome org>]

commit 78f82348a205c9617fe478f36e811e8d281d0b79
Author: Jordi Mas <jmas softcatala org>
Date:   Fri May 7 18:57:46 2021 +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 bfadb9e9ff..f226cf3514 100644
--- a/po/ca.po
+++ b/po/ca.po
@@ -2224,7 +2224,7 @@ msgstr "Reinicia…"
 
 #: js/ui/status/system.js:141
 msgid "Power Off…"
-msgstr "Atura…"
+msgstr "Apaga…"
 
 #: js/ui/status/system.js:154
 msgid "Log Out"