启用桌面歌词时，取消对歌词窗口的聚焦（#1273）

src/renderer-lyric/index.html

@@ -1,11 +1,11 @@
-<html lang="cn">
+<!DOCTYPE html>
+<html lang="en" style="background-color: transparent;">
   <head>
     <meta charset="UTF-8"/>
     <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
-    <meta http-equiv="X-UA-Compatible" content="ie=edge"/>
     <title>桌面歌词-洛雪音乐助手</title>
   </head>
-  <body>
+  <body id="body" style="background-color: transparent;">
     <div id="root"></div>
     <script>
       window.dom_style_theme = document.createElement('style')