Show task completion status directly in Tasks calendar view

Description:

Currently, when a task is marked as completed in the Tasks app, there's no visual indication of its status in the calendar view. To confirm whether a task has been completed, users have to click into the task and scroll to the bottom, where the "Completed" status is shown.

Suggested improvement: Surface completion status directly on the calendar view — for example:

• A "Completed" label or checkmark on the task card, or

• A distinct color / reduced opacity / strikethrough styling for completed tasks

Why it matters:

• Saves time by removing the need to open each task individually

• Makes it easy to see at a glance what's done vs. still outstanding for the day/week

• Improves daily operational workflow for property managers who rely on Tasks to coordinate cleaning, maintenance, and check-in prep