Turbopack: asset ident instead of chunk item ID in CSS (#78018)
This is absolutely useless with numerical ids (prod build with `turbopackMinify: false`):
```css
/* 51318 */
.base2-module__zzC_ua__base {
color: #ff0200;
}
/* 29244 */
.base2-scss-module-scss-module__JjfRsa__base {
color: #ff0300;
}
/* 85234 */
.base-module__DNnTeq__base {
color: red;
}
/* 29244 */
.base2-scss-module-scss-module__JjfRsa__base {
color: #ff0300;
}
```
