Fix notification summary for revision comments — radicle-desktop

Instead of showing left a review comment we should just say left a comment for a revision comment.

   ) {
     summary = `closed ${kind}`;
   } else if (lastAction.type === "revision.comment") {
     summary = `left ${count > 1 ? count : "a"} review ${pluralize("comment", count)}`;
     summary = `left ${count > 1 ? count : "a"} ${pluralize("comment", count)}`;
   } else if (lastAction.type === "review.comment") {
     summary = `left ${count > 1 ? count : "a"} review ${pluralize("comment", count)}`;
   } else if (a.every(e => e.type === "comment.react")) {