Reuse upstream's “Posts and replies” as column heading (#2023)

Upstream does not have a column heading for “Posts and replies”, but the
text itself exists in a similar context, so re-use that translatable
string so that we can use upstream's translations.

app/javascript/flavours/glitch/features/status/index.js

@@ -67,7 +67,7 @@ const messages = defineMessages({
   detailedStatus: { id: 'status.detailed_status', defaultMessage: 'Detailed conversation view' },
   replyConfirm: { id: 'confirmations.reply.confirm', defaultMessage: 'Reply' },
   replyMessage: { id: 'confirmations.reply.message', defaultMessage: 'Replying now will overwrite the message you are currently composing. Are you sure you want to proceed?' },
-  tootHeading: { id: 'column.toot', defaultMessage: 'Toots and replies' },
+  tootHeading: { id: 'account.posts_with_replies', defaultMessage: 'Posts and replies' },
 });
 
 const makeMapStateToProps = () => {