Uncaught error: jQ: undefined method `jQ' for #<EditItem:0xb7c>: Todo Tutorial needs to import jquery

Jquery is no longer imported by the hyperstack rails installer, so it has to be done as a manual step in the tutorial.

Add these lines:

```
Hyperstack.import 'jquery', client_only: true
Hyperstack.import 'hyperstack/component/jquery', client_only: true
```