Update lang build process.

package.json

@@ -21,7 +21,7 @@
     "build-components": "rollup -c rollup.components.config.mjs",
     "build-tracker": "rollup -c rollup.tracker.config.mjs",
     "build-db": "npm-run-all copy-db-files build-db-client",
-    "build-lang": "npm-run-all format-lang compile-lang download-country-names download-language-names",
+    "build-lang": "npm-run-all format-lang compile-lang clean-lang download-country-names download-language-names",
     "build-geo": "node scripts/build-geo.js",
     "build-db-schema": "prisma db pull",
     "build-db-client": "prisma generate",
@@ -35,6 +35,7 @@
     "generate-lang": "npm-run-all extract-messages merge-messages",
     "format-lang": "node scripts/format-lang.js",
     "compile-lang": "formatjs compile-folder --ast build/messages public/intl/messages",
+    "clean-lang": "prettier --write ./public/intl/messages/*.json",
     "check-lang": "node scripts/check-lang.js",
     "download-country-names": "node scripts/download-country-names.js",
     "download-language-names": "node scripts/download-language-names.js",