My Sites View: Plus button to create a new site is disabled when all sites are set to off

[brcavallaro]

Expected behavior

The + button should always be enabled for the user to create a new site in the My Sites view, even if all the toggles from all existing ones are off.

Actual behavior

When I disable all sites under the My Sites view, the + button appears disabled. Check the recording and steps below.

https://user-images.githubusercontent.com/2813972/159392479-920cd725-450c-42aa-8497-b6094ac80d2c.mp4

Steps to reproduce the behavior

1. Go to My Sites view.
2. Set the toggle to off for all sites in your list.
3. Check the state of the + button (Create Site).

Tested on iPhone XS, iOS 14.8.1, WPiOS 19.4.0.2