chore: exit on errors

Author: feildmaster

index.js

@@ -1,4 +1,8 @@
+const { app } = require('electron');
 const init = require('./src/electron');
 const update = require('./src/underscript');
 
-update().then(init);
+update().then(init).catch((err) => {
+  console.error(err);
+  app.quit();
+});