Fix malformatted jellyfin proxy settings

scripts/Common/Software/docker/services/jellyfin/main.fish

@@ -123,12 +123,12 @@ begin
     end
 
     function getExtraLocationSettings -a domain s location -V service -V suggest -V servarr
-        set -l wsConfig (
+        set -l wsConfig "$(
             printf "%s\n" \
                 '# Websocket' \
                 "proxy_http_version 1.1;" \
                 'proxy_set_header Upgrade $http_upgrade;' \
-                'proxy_set_header Connection "upgrade";')
+                'proxy_set_header Connection "upgrade";')"
 
         if [ "$s" = "$service" ]
             if [ "$location" = / ]