Add JS behavior for init.js

I added JS behavior to init.js. Please check it.

That's not the correct way of doing it.
You've wrapped the whole code in Drupal behavior which means it would be called multiple times on the same page and the window load event handler would fire multiple times. Also, why'd you use the window load event listener in behavior?..
Also, there's a comment saying configuration options could be customized but in fact they're hardcoded.

@abramm Thanks for mentoring. It's my bad I incorrectly understood the Drupal behavior logic. I fixed the remarks.
@ arthur.baghdasar Please check it.

arthur.baghdasar → made their first commit to this issue’s fork.

Automatically closed - issue fixed for 2 weeks with no activity.