Enable brotli

Signed-off-by: Danila Fedorin <danila.fedorin@gmail.com>

configuration.nix

@@ -94,6 +94,7 @@ in
     services.nginx = {
       enable = true;
       recommendedGzipSettings = true;
+      recommendedBrotliSettings = true;
       recommendedProxySettings = true;
       virtualHosts = pkgs.lib.mkMerge allVirtualHosts;
     };