Add clickable link to current weather source

[smccrearyx]

Add a link to the current source of the weather data. This might be a better solution than some of the other feature requests. Make it easy for a user to click somewhere on the app in order to open a web page showing more detailed weather for their selected location.

[nexus6-haiku]

As of now, Open Meteo does not provide a web page/app with weather forecast.
We may add support for this when we properly decouple provider and internal API/logic and add more providers.