meteo-qt: add .desktop file

Co-authored-by: Aleksana <alexander.huang.y@gmail.com>

pkgs/by-name/me/meteo-qt/package.nix

@@ -29,6 +29,10 @@ python3Packages.buildPythonApplication rec {
     pyqt5
   ];
 
+  postFixup = ''
+    mv $out/${python3Packages.python.sitePackages}/usr/share $out/share
+  '';
+
   pythonImportsCheck = [ "meteo_qt" ];
 
   makeWrapperArgs = [ "\${qtWrapperArgs[@]}" ];