Change window title to LX Music (#2248)

src/renderer-lyric/index.html

@@ -3,7 +3,7 @@
   <head>
     <meta charset="UTF-8"/>
     <meta name="viewport" content="width=device-width, initial-scale=1.0"/>
-    <title>桌面歌词-洛雪音乐助手</title>
+    <title>Lyric - LX Music</title>
   </head>
   <body id="body" style="background-color: transparent;">
     <div id="root"></div>