[gnome-control-center] Update Catalan translation

[Jordi Mas <jmas src gnome org>]

commit 879dac115fc29ae81d6b4e6f7fb13f277ac6a548
Author: Jordi Mas <jmas softcatala org>
Date:   Thu Mar 28 06:09:52 2019 +0100

    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 be966d594..5bb5932da 100644
--- a/po/ca.po
+++ b/po/ca.po
@@ -538,7 +538,7 @@ msgstr "Activeu i desactiveu el Bluetooth i connecteu els dispositius"
 #. Translators: Do NOT translate or transliterate this text (this is an icon file name)!
 #: panels/bluetooth/gnome-bluetooth-panel.desktop.in.in:6
 msgid "bluetooth"
-msgstr "Bluetooth"
+msgstr "bluetooth"
 
 #. Translators: Search terms to find the Bluetooth panel. Do NOT translate or localize the semicolons! The 
list MUST also end with a semicolon!
 #: panels/bluetooth/gnome-bluetooth-panel.desktop.in.in:19