Enable Dropdown Selection for Cancellation Reasons in Membership Cancellation Prompt Feature Request

Title: Replace Textbox with Dropdown for Cancellation Reasons in Membership Cancellation Prompt

Description: Currently, when a membership is canceled in CourtReserve, the system prompts users to provide a reason for cancellation using a free-text textbox. However, there is no option to switch this input method to a dropdown (combobox) with predefined cancellation reasons. While adding custom fields allows administrators to define specific reasons, these fields only appear on the membership details tab and not in the cancellation prompt. This inconsistency leads to difficulty in standardizing data and streamlining reporting.

Postconditions:

• The cancellation reason is successfully saved and is available for reporting and analytics.
• Administrators can analyze standardized data to identify trends in membership cancellations.

Benefits:

1. Ensures standardized input for cancellation reasons, improving data quality.
2. Reduces manual errors from free-text entries.
3. Provides consistency between custom fields and the cancellation prompt.
4. Enhances reporting and analytics capabilities by categorizing reasons.

Edge Cases:

• Administrators should have the option to allow users to provide an "Other" reason, along with additional comments.