feat: separate remove-unused command

common/translations-cli/constants.js

@@ -1,5 +1,14 @@
 const defaultLanguage = 'en-US';
 
+/** @typedef {{ extensions: string[], directories: string[]}} ExtractConfig
+
+/** @type {ExtractConfig} */
+const defaultExtractConfig = {
+  extensions: ['.js', '.ts', '.svelte'],
+  directories: ['app', 'packages/web'],
+};
+
 module.exports = {
   defaultLanguage,
+  defaultExtractConfig,
 };