[Bug] Peripheral connection issues

[laurensvalk]

Describe the bug There are a few distinct issues that need fixing:

• [x] When Bluetooth causes a soft shutdown, the shutdown animation blink is not visible, making it look like a hard crash.
• [x] When initialization fails for any reason, you get RuntimeError: Can use only one Remote if you try a second time
• [x] Connecting to the Xbox Controller waits indefinitely if the controller is not in pairing mode. It should give up and raise an error (like it used to in V3.6.1)
• [x] Error propagation from the Bluetooth task handling loop is not done correctly, so we don't see all errors.
• [ ] Update scanning to match new peripheral objects