Full cleanup pass

messages/en/create/topNav.json

@@ -14,6 +14,10 @@
   "moreOptionsAriaLabel": "More options",
   "actionsMenuAriaLabel": "Create flow actions",
   "leaveConfirmLoss": "Leave create flow? Your progress will be lost.",
+  "leaveConfirmTitle": "Leave create flow?",
+  "leaveConfirmDescription": "Your progress on this device will be lost unless you use Save & Exit first.",
+  "leaveConfirmProceed": "Leave",
+  "leaveConfirmCancel": "Stay",
   "draftSaveBannerTitle": "Couldn't save draft",
   "postLoginSaveFailedWithReason": "Could not save your draft to your account. Your progress is still stored on this device.\n\n{reason}"
 }