feat: add taskbar flashing on new notifications (#1209)

Co-authored-by: V <vendicated@riseup.net>

src/renderer/patches/taskBarFlash.ts

@@ -0,0 +1,27 @@
+/*
+ * Vesktop, a desktop app aiming to give you a snappier Discord Experience
+ * Copyright (c) 2025 Vendicated and Vesktop contributors
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+import { Settings } from "renderer/settings";
+
+import { addPatch } from "./shared";
+
+addPatch({
+    patches: [
+        {
+            find: ".flashFrame(!0)",
+            replacement: {
+                match: /(\i)&&\i\.\i\.taskbarFlash&&\i\.\i\.flashFrame\(!0\)/,
+                replace: "$self.flashFrame()"
+            }
+        }
+    ],
+
+    flashFrame() {
+        if (Settings.store.enableTaskbarFlashing) {
+            VesktopNative.win.flashFrame(true);
+        }
+    }
+});