python3Packages.plover_{4,5}: install desktop entry (#530368)

pkgs/development/python-modules/plover/4.nix

@@ -70,6 +70,10 @@ buildPythonPackage (finalAttrs: {
   # Segfaults?!
   disabledTestPaths = [ "test/gui_qt/test_dictionaries_widget.py" ];
 
+  postInstall = ''
+    install -Dm 444 linux/plover.desktop $out/share/applications/plover.desktop
+  '';
+
   preFixup = ''
     makeWrapperArgs+=("''${qtWrapperArgs[@]}")
   '';

pkgs/development/python-modules/plover/5.nix

@@ -124,6 +124,10 @@ buildPythonPackage (finalAttrs: {
     "test/gui_qt/test_i18n_files.py" # babel errors
   ];
 
+  postInstall = ''
+    install -Dm 444 linux/plover.desktop $out/share/applications/plover.desktop
+  '';
+
   preFixup = ''
     makeWrapperArgs+=("''${qtWrapperArgs[@]}")
   '';