Usa l'icona real de icon/ al bundle macOS i al «Quant a»

jlauncher/paths.py

@@ -65,7 +65,7 @@ def app_icon_path() -> Path | None:
     if bundle is not None:
         candidate = bundle / "Contents" / "Resources" / "icon.png"
     else:
-        candidate = base_dir() / "assets" / "icon.png"
+        candidate = base_dir() / "icon" / "icon.png"
     return candidate if candidate.exists() else None