proxy logs too

Signed-off-by: Anirudh Oppiliappan <[e-mail]>

hosts/nixery/services/nginx.nix

···
             proxy_set_header X-Forwarded-For $remote_addr;
             proxy_set_header Host $host;
             proxy_set_header Upgrade $http_upgrade;
-            proxy_set_header Connection Upgrade;
+            proxy_set_header Connection "upgrade";
+          '';
+        };
+        locations."/logs/" = {
+          proxyPass = "http://localhost:6555";
+          extraConfig = ''
+            proxy_set_header X-Forwarded-For $remote_addr;
+            proxy_set_header Host $host;
+            proxy_set_header Upgrade $http_upgrade;
+            proxy_set_header Connection "upgrade";
           '';
         };
       };