Stripe Integration: Improved Handling for 'Send Invoice' Collection Method

We've refined how we handle subscriptions that use the 'send_invoice' collection method. This update ensures subscriptions reflect accurate information, even when the due date exceeds the current billing period.

This adjustment helps maintain the integrity of subscription data, particularly for annual subscriptions and similar cases. As a result, you'll have a more precise view of your customer subscriptions and their statuses.