Xmpp -> XMPP

Signed-off-by: Julien Veyssier <eneiluj@posteo.net>

src/components/RightSidebar/Matterbridge/MatterbridgeSettings.vue

@@ -402,12 +402,12 @@ export default {
 					},
 				},
 				xmpp: {
-					name: 'Xmpp/Jabber',
+					name: 'XMPP/Jabber',
 					infoTarget: 'https://github.com/42wim/matterbridge/wiki/Settings#xmpp',
 					fields: {
 						server: {
 							type: 'url',
-							placeholder: t('spreed', 'Xmpp/Jabber server URL'),
+							placeholder: t('spreed', 'XMPP/Jabber server URL'),
 							icon: 'icon-link',
 						},
 						muc: {