feat(integration): add image variants section and standardize code snippets

web/src/composables/useShikiHighlighter.ts

@@ -1,21 +0,0 @@
-import { createHighlighter, type Highlighter } from 'shiki'
-
-let highlighterPromise: Promise<Highlighter> | null = null
-
-export function useShikiHighlighter() {
-	if (!highlighterPromise) {
-		highlighterPromise = createHighlighter({
-			themes: ['github-light', 'github-dark'],
-			langs: ['javascript', 'shellscript', 'json'],
-		})
-	}
-	return highlighterPromise
-}
-
-export function highlightToHtml(highlighter: Highlighter, code: string, lang: string) {
-	return highlighter.codeToHtml(code, {
-		lang,
-		themes: { light: 'github-light', dark: 'github-dark' },
-		defaultColor: false,
-	})
-}