User clicks to trigger email composition pop-up box

In the user interface, add a feature so that when the user clicks on a specific user (e.g. user list or user avatar), a direct pop-up window for email composing will be displayed and the recipient's email address will be filled in automatically.

• In the user interface, identify the interaction element (e.g. user avatar or username) that the user clicks on to trigger the popup box.
• Implement the click event so that it triggers the display of the email compose popup box.
• Auto-populate the clicked user's email address into the To field in the email composition popup.
• Test the functionality to make sure that clicks in different scenarios correctly trigger the email compose popup.

Expected results: Users can quickly open the compose window and send an email by clicking on the user element of the user interface.