locale-helper: Move supported-locales.js to supported-locales.json.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>

tools/locale-helper/index.js

@@ -10,7 +10,7 @@ function writeJSON(file, data) {
 }
 
 const { phrases } = require('./locale-template');
-const supportedLocales = require('./supported-locales');
+const supportedLocales = require('./supported-locales.json');
 
 phrases.sort();
 for (let locale in supportedLocales) {

tools/locale-helper/supported-locales.json

@@ -1,4 +1,4 @@
-module.exports = {
+{
     "de": "Deutsch",
     "pl": "polski",
     "en": "English",
@@ -18,4 +18,4 @@ module.exports = {
     "es": "español",
     "ko": "한국어",
     "fr": "français"
-};
+}