don't crash out if notification status is null

src/services/entity_normalizer/entity_normalizer.service.js

@@ -408,8 +408,10 @@ export const parseNotification = (data) => {
   if (masto) {
     output.type = mastoDict[data.type] || data.type
     output.seen = data.pleroma.is_seen
+    if (data.status) {
       output.status = isStatusNotification(output.type) ? parseStatus(data.status) : null
       output.action = output.status // TODO: Refactor, this is unneeded
+    }
     output.target = output.type !== 'move'
       ? null
       : parseUser(data.target)