Update the deactivate Woo Subscriptions plugin notice

[james-allan]

Describe the bug

When you deactivate the Woo Subscriptions plugin, the following notice is shown if:

1. The new Stripe Billing feature is enabled or,
2. The store has at least 1 Stripe Billing subscription.

Note

This logic is not by original design. With the recent change to load Stripe Billing integration code when the store has enabled the feature, has at least 1 stripe billing or is using the WCPay Subscriptions feature means that this notice is shown when deactivating Woo Subscriptions when it shouldn't.

Important

It use to show if you deactivated Woo Subscriptions and had the WCPay Subscriptions feature enabled.

This notice needs to be updated to:

1. Show when the store has Stripe Billing Subscriptions.
2. Refer to the dangers of deactivating Woo Subscriptions while there are Stripe Billing subscriptions.

There's also a weird bug if you have WooCommerce.com connected, clicking the deactivate button doesn't show the notice because the button has an ID of deactivate-woocommerce-com-woocommerce-subscriptions. Which means the code which intercepts the deactivate button click doesn't work.

To Reproduce

1. Install Woo Subscriptions.
2. Enable Stripe Billing.
3. Purchase a subscription using Stripe Billing.
4. Deactivate Woo Subscriptions.

You should see a notice that warns about the risks of that.

[zmaglica]

This issue impacts subscriptions, so assigning to team Quark. (based on team responsibilities Pc2DNy-3z-p2) @diegocurbelo . Assigning as part of Gamma Triage process PcreKM-yM-p2.