[Feature Request] Add logging

My xfce4-weather-plugin has not shown the weather for several months - I see the message "Currently no data available". Previously, weather information was displayed correctly. The api.met.no website is available. tcpdump shows that there are requests to IP 157.249.81.141, but I can't see their contents and responses because the protocol is HTTPS. It would be useful if you added a log level switch to the configuration file or the settings window (for example, the Apperance tab). And in the log file, for example /var/log/xfce4-weather-plugin.log, write the protocol of all connections (urls and answers) to the api because it is not clear what is happening at all and where the problem is.