MediaType enum is not reflecting the graph output

Source Tree:
```txt
├── component.tsx
└── main.ts

```
`component.tsx`:
```tsx
export default () => <div />;
```

`main.ts`:
```ts
import { createGraph, MediaType } from "jsr:@deno/graph";

const graph = await createGraph([import.meta.resolve("./component.tsx")]);

console.log(graph.modules.at(0)?.mediaType, MediaType.Tsx);
// TSX Tsx <---- NOT THE SAME
```