Add Solid Babel transform dependency

[joshpoll]

What kind of change does this pull request introduce?

Bug fix

What is the current behavior?

The current Solid template fails to run correctly:

https://sandpack.codesandbox.io/docs/getting-started/usage

Something went wrong

/App.tsx: _tmpl$ is not a function (4:2)

  1 | import { Component } from "solid-js";
  2 | 
  3 | const App: Component = () => {
> 4 |   return <h1>Hello world</h1>
        ^
  5 | };
  6 | 
  7 | export default App;

What is the new behavior?

The template should be fixed

What steps did you take to test this? This is required before we can merge, make sure to test the flow you've updated.

I'm not sure how to test this! I've run it in a separate code sandbox and that worked.
It also matches the dependencies in Ryan Carniato's example sandbox: https://codesandbox.io/s/solid-hello-world-9v13b

Checklist

• Documentation; N/A
• Storybook (if applicable); N/A
• Tests;
• Ready to be merged;

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Latest deployment of this branch, based on commit b1165b0:

Sandbox	Source
Sandpack	Configuration
sandpack-run-stale-value	Configuration
Solid Hello World	PR

[joshpoll]

I noticed that there is a .babelrc file in Ryan Carniato's example. However, in sandpack it doesn't seem to be necessary for some reason. Additionally, it actually seems to break the current version when I run it like this:

<Sandpack
  template="solid"
  files={{
    "/.babelrc": {
      code: `{
  "presets": [
    "babel-preset-solid"
  ]
}`,
    },
  }}
  customSetup={{
    dependencies: {
      "babel-preset-solid": "1.6.16",
    },
  }}
/>

Without .babelrc things seem to work fine.