make send-interval configurable via the configuration menu

[Baxxy13]

I don't need the short send-interval of 10s and found out that i can change this in /IoTuring/Warehouse/Warehouse.py

Maybe you can implement an option in the configuration menu to change the value.
I think it is easier within configuration to setup than editing files.

[Baxxy13]

Thanks for implementing.
Working nicely with 2024.6.1