Fix Darwin Nix desktop app icon (#2783)

* Fix Darwin Nix desktop app icon

* Refresh Darwin Nix bundle identity

packages/desktop/electron-builder.yml

@@ -42,6 +42,8 @@ mac:
   extraResources:
     - from: bin/paseo
       to: bin/paseo
+    - from: assets/icon.png
+      to: icon.png
   target:
     - dmg
     - zip

packages/desktop/src/main.ts

@@ -651,8 +651,8 @@ function applyAppIcon(): void {
     return;
   }
 
-  const iconPath = path.resolve(__dirname, "../assets/icon.png");
-  if (!existsSync(iconPath)) {
+  const iconPath = getWindowIconPath();
+  if (!iconPath) {
     return;
   }