Allow Event Custom TextArea Fields to Use Full Width and Be Resizable

We use Event Custom TextArea fields to maintain internal checklists when copying event templates.

Currently, these fields are much narrower than the standard Event Note field, making longer checklists difficult to read and edit.

Suggested improvement:

• Allow TextArea custom fields to use the full available width.
• Allow administrators to resize the fields vertically and horizontally.
• Ideally, provide a configurable default height.

This would make Event Custom Fields much more practical for administrative workflows and event template management.

Thank you!