New triggers for Payment Links and Paypal for recurring invoices

Order Submitted Trigger is now enabled for payment links.

• When a customer completes a purchase through a payment link, business users can:
• Utilise the Order Submitted Trigger to automate post-purchase workflows.
• Tailor actions to specific business needs, such as sending confirmation emails, updating data, or notifying teams.

• If PayPal integration is active in the system:
• Business users can offer PayPal as an option for their recurring billing needs.
• Customers gain more flexibility in choosing their preferred payment method.