Add lifecycle between request and response to use `.js`

Reimplement .js in 2 cases

- `.request` (write .js before response)
- `.response` (renamed .js)

**Example**
```js
httpScript(
`
g :1234

.request
// Only this works here
console.log(this)
this.state.mydata = {}
.

.response
console.log(response)
this.state.mydata.title = response.title
.
`
)
```