prettier-plugin: Improve implementation to work for import alias of hbs

[wondersloth]

Currently, for a component file, formatting will not apply if the tagged template expression is named anything other than hbs.

Improve the prettier plugin such renaming of the export still works.

Formats today

import Component, { hbs } from '@glimmex/component';

export default class Example extends Component {
  static template = hbs`
    <h1>
      Hello World
    </h1>
  `;
}

Currently does not format

import Component, { hbs as tpl } from '@glimmex/component';

export default class Example extends Component {
  static template = tpl`
    <h1>
      Hello World
    </h1>
  `;
}