Adds benchmark settings. Removes blog and about from header

flake.nix

@@ -38,14 +38,14 @@
         { pkgs }:
         {
           default = pkgs.mkShell {
-            # Pinned packages available in the environment
             packages = with pkgs; [
-              nodejs_22
-              git
-              eslint
-              nixpkgs-fmt
-              astro-language-server
-              nodePackages.prettier
+              git # Version control
+              nodejs_22 # Base language utils
+              eslint # Linting
+              astro-language-server # LSP
+              nodePackages.prettier # Formatting
+              nixpkgs-fmt # Formatting
+              drill # Benchmarking
             ];
           };
         }