smoother way to show main window after splash

src/main/events/autoupdater/check-for-updates.ts

@@ -42,7 +42,7 @@ const mockValuesForDebug = async () => {
         bytesPerSecond: 4568,
       },
     });
-    await sleep(1000);
+    await sleep(800);
   }
 
   sendEvent({ type: "update-downloaded" });

src/main/events/autoupdater/continue-to-main-window.ts

@@ -6,8 +6,7 @@ const { autoUpdater } = updater;
 
 const continueToMainWindow = async (_event: Electron.IpcMainInvokeEvent) => {
   autoUpdater.removeAllListeners();
-  WindowManager.splashWindow?.close();
-  WindowManager.createMainWindow();
+  WindowManager.prepareMainWindowAndCloseSplash();
 };
 
 registerEvent("continueToMainWindow", continueToMainWindow);

src/main/events/autoupdater/restart-and-install-update.ts

@@ -10,8 +10,7 @@ const restartAndInstallUpdate = async (_event: Electron.IpcMainInvokeEvent) => {
     autoUpdater.quitAndInstall(true, true);
   } else {
     autoUpdater.removeAllListeners();
-    WindowManager.splashWindow?.close();
-    WindowManager.createMainWindow();
+    WindowManager.prepareMainWindowAndCloseSplash();
   }
 };