Fix

node_modules/shiki/samples/gts.sample

@@ -0,0 +1,7 @@
+import type { TemplateOnlyComponent } from '@glimmer/component';
+
+const Greet: TemplateOnlyComponent<{ name: string }> = <template>
+  <p>Hello, {{@name}}!</p>
+</template>
+
+# From https://rfcs.emberjs.com/id/0779-first-class-component-templates