Jifflenow: Enable Requesters to Cancel Meetings Created via Shared Links

Currently, requesters booking meetings via personal booking links or custom links use the 'update hyperlink' provided in notifications to modify their meeting requests. While they can update details such as time and participants, they lack a direct option to cancel the meeting. This forces them to depend on the link creators for cancellations, resulting in inefficiencies, delays, and a disrupted user experience.

Proposed Solution:

1. Add a "Cancel Meeting" option in the update share link UI.

2. Upon clicking "Cancel," a popup appears to capture the reason for the cancellation.

3. Confirming the action will send notifications (based on configuration) to all participants and the link creator.

4. Log cancellation actions in the meeting history, including the initiator's name and reason (e.g., “Meeting canceled by Ricky Pointing via Share Link: <Reason>”).