fix(linux): use resources/icon.png as icon source for correct installation path

Author: munlicode

packages/desktop-app/electron-builder.yml

@@ -34,7 +34,7 @@ linux:
   synopsis: Desktop Wallpaper Application Suite
   description: A simple yet powerful tool to transform your workspace.
   category: Utility
-  icon: build/icon.png
+  icon: resources/icon.png
   desktop:
     StartupNotify: 'true'
 appImage: