jQuery 3 Upgrade

# jQuery 3 Upgrade

See the full [upgrade 3.0 guide](https://jquery.com/upgrade-guide/3.0/)

## Ajax

`.get()`

- [ ] /js/settings.js

`.post()`

- [ ] /js/settings.js

## Data

`.data()`

- [ ] /js/settings.js

## Event

`.on()`

- [ ] /js/settings.js