Detect Click on Anonymous Post Button to Change Data Field

[J0nathanLai]

To connect the frontend and the backend, we need to change the post's data field when the user clicks the anonymous post button. So the data field should be set to a code that detects the user's click

Estimated effort for each task: Medium
Dependencies among tasks: #25
Milestones to indicate which sprint the issue should be completed in (Sprint 1, Sprint 2, Stretch): Sprint 2
Acceptance criteria that describes how you know this task is done: use console log to print something to show that a click is detected and the anonymous post data field goes from not anonymous to anonymous.