feat(formatter): add pluralize transformer for text action (#1260)

packages/backend/package.json

@@ -69,6 +69,7 @@
     "passport": "^0.6.0",
     "pg": "^8.7.1",
     "php-serialize": "^4.0.2",
+    "pluralize": "^8.0.0",
     "showdown": "^2.1.0",
     "stripe": "^11.13.0",
     "winston": "^3.7.1",
@@ -126,6 +127,7 @@
     "@types/nodemailer": "^6.4.4",
     "@types/pg": "^8.6.1",
     "@types/pino": "^7.0.5",
+    "@types/pluralize": "^0.0.30",
     "@types/showdown": "^2.0.1",
     "ava": "^3.15.0",
     "nodemon": "^2.0.13",