i18n the osd button when pressed

It shows a "Saved" message for two seconds

locales/en/messages.json

@@ -3366,6 +3366,9 @@
     "osdWritePermissions": {
         "message": "You don't have <span class=\"message-negative\">write permissions</span> for this file"
     },
+    "osdButtonSaved": {
+        "message": "Saved"
+    },
 
     "mainHelpArmed": {
         "message": "Motor Arming"

src/js/tabs/osd.js

@@ -1891,7 +1891,7 @@ TABS.osd.initialize = function (callback) {
           MSP.promise(MSPCodes.MSP_EEPROM_WRITE);
           GUI.log(i18n.getMessage('osdSettingsSaved'));
           var oldText = $(this).text();
-          $(this).html("Saved");
+          $(this).html(i18n.getMessage('osdButtonSaved'));
           setTimeout(function () {
               $(self).html(oldText);
           }, 2000);