The label for the project task pad link was updated to better reflect that the field contains a pad URL. This reduces confusion for users and helps prevent mistakes when working with project task descriptions.

- Task: https://www.odoo.com/web#id=11336&view_type=form&model=project.task&menu_id=3942&action=327
- Pad: https://pad.odoo.com/p/r.jaiDF3Q9lQQvDeza

This fixes an issue where mail action buttons could pass information in the wrong way, causing message sending to receive extra unintended data. The change helps ensure users can trigger email-related actions without errors from misplaced context information.

...the context to be passed as another argument. An intermediary function screens the arguments before calling send_mail.