Minimize HTTP API console windows

[timbussmann]

Outcome of the discussion in #280
Consider minimizing the console windows of the HTTP API processes to minimize the visual overhead to users as they most likely won't need to interact with those console windows.

[mauroservienti]

One other option could be to affect the way apps are grouped in the taskbar by calling SetCurrentProcessExplicitAppUserModelID.

Ref. https://docs.microsoft.com/en-us/windows/desktop/api/shobjidl_core/nf-shobjidl_core-setcurrentprocessexplicitappusermodelid