Prevent auto-receive on initialization

[KingGorrin]

The disable auto-receive feature (see #46) has recently been introduced and to maintain compatibility with previous versions, the auto-receive feature has been kept enabled by default.

What’s the problem?
The auto-receive will be enabled whenever you initialize or reset your wallet. This means that it is possible for the wallet to automatically start receiving pending transactions in the time between starting syrius and disabling the auto-receive feature.

The feature to disable the auto-receive is a great function and it's worth to prevent auto-receive on initialization, but enabling privacy by default would probably cause a lot of friction.

How do we fix this?
Firstly, the connection to the node has to be delayed until confirmed on the onboard node-management screen. This has recently been solved in the following PR.

Secondly, present the user with the option to disable the auto-receive feature while onboarding before a connection to the node is confrimed.

The most logical location for this option would be on the onboard node-management screen.