Fix error with loading lang file from packaged app.

app/assets/js/langloader.js

@@ -4,7 +4,7 @@ const path = require('path')
 let lang
 
 exports.loadLanguage = function(id){
-    lang = JSON.parse(fs.readFileSync(path.resolve('app', 'assets', 'lang', `${id}.json`))) || {}
+    lang = JSON.parse(fs.readFileSync(path.join(__dirname, '..', 'lang', `${id}.json`))) || {}
 }
 
 exports.query = function(id){