add: added swaytreesave

mod: adjusted music-presence, vintage-story packages

pkgs/linux/swaytreesave.nix

@@ -0,0 +1,24 @@
+{ pkgs }:
+let
+  pname = "swaytreesave";
+  version = "0.4.0";
+
+  src = pkgs.fetchFromGitHub {
+    owner = "fabienjuif";
+    repo = "swaytreesave";
+    rev = "v${version}";
+    sha256 = "sha256-aAJBbauOiFERABF13hMhxyvRBzcx5c1F+vbm/U+JS8o=";
+  };
+in pkgs.rustPlatform.buildRustPackage {
+  inherit pname version src;
+  cargoLock = { lockFile = "${src}/Cargo.lock"; };
+
+  meta = {
+    description = "CLI to save and load your compositors tree/layout";
+    mainProgram = "swaytreesave";
+    homepage = "https://github.com/fabienjuif/swaytreesave";
+    maintainers = [ "wymillerlinux" ];
+    platforms = [ "x86_64-linux" ];
+    changelog = "https://github.com/fabienjuif/swaytreesave/releases/tag/v${version}";
+  };
+}