[1] app.js - Remove other code after successful login & redirect to popup.html after login

[vishal-lokare]

When Login button is clicked on login.html page,

1. The data is saved locally,
2. Login button is disabled and the text is changed to "Saved",
3. A new button with text "Home" is created which takes us to homepage.

Instead of this,

1. Remove the Login button disable code,
2. Don't add a new button
3. Directly redirect to homepage