fork(fix): Clone AMLL 并修复 BUG

- 将AMLL Clone到本以地进行修复和优化(emm虽然这很不优雅但是暂时无时间做子模块和Fork)
- 修复在当前播放歌词行不可见的视口Seek会出现滚动偏移的问题

amll-local/packages/docs/src/content.config.ts

@@ -0,0 +1,7 @@
+import { defineCollection } from "astro:content";
+import { docsLoader } from "@astrojs/starlight/loaders";
+import { docsSchema } from "@astrojs/starlight/schema";
+
+export const collections = {
+	docs: defineCollection({ loader: docsLoader(), schema: docsSchema() }),
+};