mauville: set samba extraConfig for speed

hosts/mauville/default.nix

@@ -61,6 +61,16 @@ in {
       openFirewall = true;
       securityType = "user";
 
+      extraConfig = ''
+        read raw = Yes
+        write raw = Yes
+        socket options = TCP_NODELAY IPTOS_LOWDELAY SO_RCVBUF=131072 SO_SNDBUF=131072
+        min receivefile size = 16384
+        use sendfile = true
+        aio read size = 16384
+        aio write size = 16384
+      '';
+
       shares = {
         Media = {
           browseable = "yes";