Review recommended rules config for func-names and no-unused-expressions

Currently `'func-names': ['error', 'always']` and `'no-unused-expressions': 'error'` produce errors for a perfectly valid aura controller code as below:

```javascript
({
myAction: function (component, event, helper) {
return false
}
})
```

This issue requires research on how these rules could be improved (in lieu of just disabling them).