优化 代码块主题

src/lib/markdown.ts

@@ -20,7 +20,7 @@ import 'prismjs/components/prism-rust'
 import 'prismjs/components/prism-sql'
 import 'prismjs/components/prism-docker'
 import 'prismjs/components/prism-nginx'
-import type { StyleOptions, RendererOptions } from '@/lib/types'
+import { StyleOptions, type RendererOptions } from '@/lib/types'
 
 // 将样式对象转换为 CSS 字符串
 function cssPropertiesToString(style: StyleOptions = {}): string {
@@ -352,4 +352,6 @@ export function convertToWechat(markdown: string, options: RendererOptions = def
   // Apply base styles
   const baseStyles = baseStylesToString(mergedOptions.base)
   return baseStyles ? `<section style="${baseStyles}">${html}</section>` : html
-}
+}
+
+export type { RendererOptions }