Adjust circular complications and widgets to world clock

[nlohmann]

Create an icon that contains:

• a symbol for the expected rain strength
• the time or date of the start of the rain

Maybe we can even use the same icon style in case it is already raining. Then we can communicate the end of the rain in the same way.

[nlohmann]

For reference, here are more mostly official complications:

[nlohmann]

Done.