JavaScript bindings should not populate within backticks

**Describe the bug**
When entering '$' within backticks, the bindings notation is incorrectly inserted:

```js
`$("")`
```

This is not ideal because you need '$' for string interpolation. 

With that said, if I do have interpolation active, then the bindings notation should populate, i.e.

```js
`${$("")}`
```

