在歌词滚动结束后清理窗口阴影，缓解Mac下桌面歌词出现残留阴影的问题

src/main/modules/winLyric/main.ts

@@ -194,6 +194,11 @@ export const getMainFrame = (): Electron.WebFrameMain | null => {
   return browserWindow.webContents.mainFrame
 }
 
+export const invalidateShadow = () => {
+  if (!browserWindow) return
+  browserWindow.invalidateShadow()
+}
+
 interface AlwaysOnTopTools {
   timeout: NodeJS.Timeout | null
   setAlwaysOnTop: (isLoop: boolean) => void

src/main/modules/winLyric/rendererEvent.ts

@@ -3,7 +3,7 @@ import { mainOn, mainHandle } from '@common/mainIpc'
 import { WIN_LYRIC_RENDERER_EVENT_NAME } from '@common/ipcNames'
 import { buildLyricConfig, getLyricWindowBounds } from './utils'
 import { sendNewDesktopLyricClient } from '@main/modules/winMain'
-import { getBounds, getMainFrame, sendEvent, setBounds } from './main'
+import { getBounds, getMainFrame, invalidateShadow, sendEvent, setBounds } from './main'
 import { MessageChannelMain } from 'electron'
 
 
@@ -29,6 +29,10 @@ export default () => {
     setBounds(getLyricWindowBounds(getBounds(), options))
   })
 
+  mainOn(WIN_LYRIC_RENDERER_EVENT_NAME.invalidate_shadow, () => {
+    invalidateShadow()
+  })
+
   mainOn(WIN_LYRIC_RENDERER_EVENT_NAME.request_main_window_channel, ({ event }) => {
     if (event.senderFrame !== getMainFrame()) return
     // Create a new channel ...