Added Czech language.

scripts/check-lang.js

@@ -7,12 +7,17 @@ const ignore = require('../lang-ignore.json');
 const dir = path.resolve(__dirname, '../lang');
 const files = fs.readdirSync(dir);
 const keys = Object.keys(messages).sort();
+const filter = process.argv?.[2];
 
 files.forEach(file => {
   if (file !== 'en-US.json') {
     const lang = require(`../lang/${file}`);
     const id = file.replace('.json', '');
 
+    if (filter && filter !== id) {
+      return;
+    }
+
     console.log(chalk.yellowBright(`\n## ${file.replace('.json', '')}`));
     let count = 0;
     keys.forEach(key => {