Adding the elapsed time since update

[Lucile-Sanchez]

Hello, first many thanks as it is nice that we can check out different forecast!
On windy online in the webpage, we can see the time that is elapsed since the last update for all the weather models, but not on the app. It will be nice if it can be just near the forecast choice on the right bottom corner! :)
Many thanks!!
Lucile

[Gkikas LGPZ]

@Lucile-Sanchez