fix(pkg): module alias error

lib/app.js

@@ -1,4 +1,6 @@
-require('module-alias/register');
+const moduleAlias = require('module-alias');
+moduleAlias.addAlias('@', () => __dirname);
+
 require('./utils/request-wrapper');
 
 const Koa = require('koa');

package.json

@@ -1,6 +1,6 @@
 {
   "name": "rsshub",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "description": "Make RSS Great Again!",
   "main": "lib/pkg.js",
   "files": [
@@ -123,8 +123,5 @@
     "moduleNameMapper": {
       "@/(.*)": "<rootDir>/lib/$1"
     }
-  },
-  "_moduleAliases": {
-    "@": "./lib"
   }
 }