Add config system

Introduce ability to change default settings for the app.
Currently starting with disabling i18n debug on prod server

Signed-off-by: Sudhanshu Gautam <me@sudhanshug.com>

.eslintrc.yml

@@ -1,5 +1,6 @@
 env:
   browser: true
+  node: true
   es6: true
   jest: true
 extends:

src/config.js

@@ -0,0 +1,11 @@
+const defaults = {};
+const prod = {
+  i18nDebug: false,
+};
+const dev = {
+  i18nDebug: true,
+};
+export default {
+  ...defaults,
+  settings: process.env.NODE_ENV === 'development' ? dev : prod,
+};

src/i18n.js

@@ -3,6 +3,7 @@ import { initReactI18next } from 'react-i18next';
 import LanguageDetector from 'i18next-browser-languagedetector';
 import translationEN from './locales/en.json';
 import translationDE from './locales/de.json';
+import Config from './config';
 
 const resources = {
   en: {
@@ -19,7 +20,7 @@ i18n
   .init({
     resources,
     fallbackLng: 'en',
-    debug: true,
+    debug: Config.settings.i18nDebug,
     interpolation: {
       escapeValue: false, // not needed for react as it escapes by default
     },