fix(transform): support transformAngularFile options optional in N-API bindings

[eryue0220]

Summary

Updated Rust N-API task/function signatures to accept Option<TransformOptions> instead of required TransformOptions. Thus it can run in below example, or it will throw an error:

const transformed = await transformAngularFile(
  `
  import { Component } from '@angular/core';

  @Component({
    selector: 'app-root',
    template: '<h1>Hello {{ name }}</h1>',
  })
  export class AppComponent {
    name = 'World';
  }
  `,
  'app.component.ts',
)

console.log(transformed.code)