Enhancement of Customer and Supplier Contact Page with Date Fields and Automated Notification Template System

Customer and Supplier Contact Page:

Add two new fields: "Birthdate" and "Marriage Date" for both customers and suppliers.

Ensure these fields are entry fields where users can input the respective dates.

Notification Template:

Implement an automated messaging system using a template.

This system should work similarly to the sales notification feature available in KB CloudERP, allowing for customizable templates and automated notifications.