refactor: select code block in simple way

Author: wyMinLwin

packages/site-kit/src/lib/components/Text.svelte

@@ -33,14 +33,7 @@
 				.find((node) => (node as HTMLElement).classList.contains('code-block')) as HTMLElement;
 
 			const ts = !!parent.querySelector('.ts-toggle:checked');
-			const dataLanguage =
-				parent.querySelector('pre')?.getAttribute('data-language')?.toLowerCase() ?? '';
-			const query = ts
-				? dataLanguage === 'svelte'
-					? `pre:last-of-type code`
-					: `pre[data-language="ts"] code`
-				: 'pre code';
-			const code = parent.querySelector(query) as HTMLElement;
+			const code = parent.querySelectorAll(':scope > pre > code')[ts ? 1 : 0] as HTMLElement;
 			navigator.clipboard.writeText(get_text(code));
 		}
 	}