Add optional icon file support for Windows and macOS (#119)

Updated the documentation to include `public/icon.ico` for Windows and `public/icon.icns` for macOS as optional icon files. This clarifies how these files are utilized when building desktop applications.

Author: WINBIGFOX

resources/views/docs/desktop/1/getting-started/development.md

@@ -102,6 +102,8 @@ For more details, see the [Databases](/docs/digging-deeper/databases) section.
 The `native:serve` and `native:build` commands look for the following icon files when building your application:
 
 - `public/icon.png` - your main icon, used on the Desktop, Dock and app switcher.
+- `public/icon.ico` - if it exists, it is used as an icon file for Windows (optional).
+- `public/icon.icns` - if it exists, it is used as an icon file for macOS (optional).
 - `public/IconTemplate.png` - used in the Menu Bar on non-retina displays.
 - `public/[email protected]` - used in the Menu Bar on retina displays.