[Feat] Display a Confirmation Dialog Before Deleting a Task

[pranavkonidena]

Is your feature request related to a problem? Please describe.
Accidentally deleting tasks can be frustrating for users. Currently, there is no confirmation step before a task is removed, increasing the risk of unintended deletions.

Describe the solution you'd like
When a user attempts to delete a task, a confirmation dialog should appear, asking the user to confirm or cancel the action. This dialog should display a message like:
"Are you sure you want to delete this task? This action cannot be undone."
The dialog should have two buttons:
Confirm/Delete: Deletes the task.
Cancel: Closes the dialog without deleting the task.

Additional context
The confirmation dialog should use a consistent design matching the app's theme (light/dark mode compatibility).
Ensure the dialog is accessible (e.g., proper text size and button focus states).