Fix linting issues

Author: yamalight

.eslintrc

@@ -6,6 +6,7 @@
     "max-len": ["error", 120, 4],
     "camelcase": "off",
     "promise/param-names": "off",
+    "no-async-promise-executor": "off",
     "prefer-promise-reject-errors": "off",
     "no-control-regex": "off",
     "prettier/prettier": [

src/config/index.js

@@ -104,7 +104,7 @@ let userConfig = defaultConfig;
 
 // config loaded promise
 let loadedResolve = () => {};
-let isConfigLoaded = new Promise(resolve => {
+const isConfigLoaded = new Promise(resolve => {
   loadedResolve = resolve;
 });