nix: update libcava version and removal of gtk-layer-shell meson option

nix/default.nix

@@ -4,27 +4,32 @@
 , version
 }:
 let
-  catch2_3 = {
-    src = pkgs.fetchFromGitHub
-      {
-        owner = "catchorg";
-        repo = "Catch2";
-        rev = "v3.5.1";
-        hash = "sha256-OyYNUfnu6h1+MfCF8O+awQ4Usad0qrdCtdZhYgOY+Vw=";
+  libcava = rec {
+    version = "0.10.1";
+    src = pkgs.fetchFromGitHub {
+      owner = "LukashonakV";
+      repo = "cava";
+      rev = version;
+      hash = "sha256-iIYKvpOWafPJB5XhDOSIW9Mb4I3A4pcgIIPQdQYEqUw=";
     };
   };
 in
-(waybar.overrideAttrs (oldAttrs: rec {
+(waybar.overrideAttrs (
+  oldAttrs: {
     inherit version;
 
     src = lib.cleanSourceWith {
       filter = name: type: type != "regular" || !lib.hasSuffix ".nix" name;
       src = lib.cleanSource ../.;
     };
-})
-).override {
-  catch2_3 = pkgs.catch2_3.overrideAttrs (oldAttrs: {
-    version = "3.5.1";
-    src = catch2_3.src;
-  });
+
+    mesonFlags = lib.remove "-Dgtk-layer-shell=enabled" oldAttrs.mesonFlags;
+
+    postUnpack = ''
+      pushd "$sourceRoot"
+      cp -R --no-preserve=mode,ownership ${libcava.src} subprojects/cava-${libcava.version}
+      patchShebangs .
+      popd
+    '';
   }
+))