新增播放详情页歌词右键菜单，新增歌词偏移设置

src/renderer/store/getters.js

@@ -69,4 +69,7 @@ export default {
   isShowAnimation(state) {
     return state.setting.isShowAnimation
   },
+  playDetailSetting(state) {
+    return state.setting.playDetail
+  },
 }

src/renderer/store/mutations.js

@@ -35,6 +35,9 @@ export default {
       state.setting.player.volume = val
     }
   },
+  setPlayDetailLyricAlign(state, val) {
+    state.setting.playDetail.style.align = val
+  },
   setPlayDetailLyricFont(state, val) {
     state.setting.playDetail.style.fontSize = val
   },