修复音量获取

xiaomusic/static/app.js

@@ -14,6 +14,7 @@ $(function(){
   append_op_button_name("60分钟后关机");
 
   // 拉取声音
+  sendcmd("get_volume#");
   $.get("/getvolume", function(data, status) {
     console.log(data, status, data["volume"]);
     $("#volume").val(data.volume);

xiaomusic/xiaomusic.py

@@ -250,6 +250,7 @@ class XiaoMusic:
 
     async def do_set_volume(self, value):
         value = int(value)
+        self._volume = value
         self.log.info(f"声音设置为{value}")
         if not self.config.use_command:
             try: