build: use libdbus over zenity

I completely misunderstood the RFD doc comments,
thought that save file dialogs were not avaliable on linux outside of gtk

this helps avoid the wrapper, which is nice;
but I imagine it would fail if portals are unavaliable.

flake.nix

@@ -20,6 +20,9 @@
         name = cargoToml.package.name;
 
         dlDeps = with pkgs; [
+          # libdbus, for rfd
+          dbus
+
           # needed for both x11 and wayland
           libxkbcommon
           libGL
@@ -77,19 +80,13 @@
             // {
               inherit cargoArtifacts;
 
-              nativeBuildInputs =
-                commonArgs.nativeBuildInputs
-                ++ [
+              nativeBuildInputs = commonArgs.nativeBuildInputs ++ [
                 pkgs.autoPatchelfHook
-                ]
-                ++ lib.optional pkgs.stdenv.hostPlatform.isLinux pkgs.makeBinaryWrapper;
+              ];
 
-              buildInputs =
-                commonArgs.buildInputs
-                ++ [
+              buildInputs = commonArgs.buildInputs ++ [
                 pkgs.libgcc
-                ]
-                ++ lib.optional pkgs.stdenv.hostPlatform.isLinux pkgs.zenity;
+              ];
 
               runtimeDependencies = dlDeps;
 
@@ -98,10 +95,6 @@
               postFixup = ''
                 mkdir -p "$out/share/applications"
                 ln -s "${desktopItem}"/share/applications/* "$out/share/applications/"
-              ''
-              + lib.optionalString pkgs.stdenv.hostPlatform.isLinux /* sh */ ''
-                wrapProgram $out/bin/${name} \
-                  --prefix PATH : ${lib.makeBinPath [ pkgs.zenity ]}
               '';
             }
           );