Ensure window stays on screen after external monitor removed.

src/main/index.ts

@@ -33,6 +33,7 @@ import {
   isKeepAliveTaskInstalled,
   setupKeepAliveTask,
 } from "./setup-keep-alive-task";
+import ensureWindowOnScreen from "./util/ensureWindowOnScreen";
 
 Sentry.init({
   dsn: "https://ba41d22656999a8c1fd63bcb7df98650@o492140.ingest.us.sentry.io/4509074139447296",
@@ -56,11 +57,14 @@ function createWindow(): void {
     y: number | undefined;
   };
 
+  // Validate window position is on screen
+  const { validX, validY } = ensureWindowOnScreen(x, y, width, height);
+
   const mainWindow = new BrowserWindow({
     width,
     height,
-    x,
-    y,
+    x: validX,
+    y: validY,
     show: false, // Start hidden, show later if not keep-alive
     minWidth: 600,
     minHeight: 400,