add missing import to template

scripts/plop/templates/component/component.hbs

@@ -2,6 +2,7 @@ import { property } from 'lit/decorators.js';
 import { html } from 'lit';
 import { LocalizeController } from '../../utilities/localize.js';
 import { watch } from '../../internal/watch.js';
+import componentStyles from '../../styles/component.styles.js';
 import ShoelaceElement from '../../internal/shoelace-element.js';
 import styles from './{{ tagWithoutPrefix tag }}.styles.js';
 import type { CSSResultGroup } from 'lit';