make username mandatory when profile locked

src/translation/en.json

@@ -1610,6 +1610,10 @@
         "success": {
             "title": "Your Account is ready",
             "openDashboardAction": "Open Dashboard"
+        },
+        "noUsername": {
+            "title": "Cannot setup account",
+            "description": "Account cannot be setup without a username."
         }
     },
     "welcomeEmail": {