neothesia: install default soundfont

Author: Naxdy

pkgs/by-name/ne/neothesia/package.nix

@@ -56,8 +56,10 @@ rustPlatform.buildRustPackage {
         xorg.libXrender
       ]
     }"
+
     install -Dm 644 flatpak/com.github.polymeilex.neothesia.desktop $out/share/applications/com.github.polymeilex.neothesia.desktop
     install -Dm 644 flatpak/com.github.polymeilex.neothesia.png $out/share/icons/hicolor/256x256/apps/com.github.polymeilex.neothesia.png
+    install -Dm 644 default.sf2 $out/share/neothesia/default.sf2
   '';
 
   meta = {