Widgets - add option to go to channel details when on click event on widget

[klew]

During widget configuration it should be possible to specify action to open channel details page in Supla app.

I.e. in case of theremometers, current behavior is to refresh reading on click. Some users may want to open Supla app with detail view for that thermometer instead.

The same option should be possible for all 1x1 widgets (and 2x1 for temp+humi) for all channels with detail view available. Currently it is only for roller shutter and for relays with mettering channel linked, but in future all channels will have detail view.

I remember that this topic was raised on forum, however I can't find it now.