fix: show delete button consistently on task cards regardless of size

[roomote]

Summary: Fixes the inconsistent delete button visibility between the main chat screen and history screen by removing the size condition from the delete button rendering logic.

Changes Made:

• TaskActions.tsx: Removed the size condition that was hiding the delete button for tasks with no size or size = 0
• TaskActions.spec.tsx: Updated tests to reflect the new behavior where delete button is always visible when an item exists
• Size display remains conditional and only shows when size > 0

Problem Solved: Previously, the delete button was only visible on task cards when item.size > 0, causing it to be hidden on the main screen for new/current tasks that might have size = 0 or undefined. This created an inconsistent user experience where users had to navigate to the history screen to delete tasks.

Testing:

• All existing tests pass
• Added new test cases for delete button visibility with size = 0 and undefined size
• Verified that size display is still conditional (only shows when size > 0)

Fixes #6494

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Important

Ensures delete button is always visible on task cards in TaskActions.tsx, regardless of task size, fixing UI inconsistency.

• Behavior:
  • TaskActions.tsx: Delete button is now always visible for tasks, regardless of item.size.
  • Size display remains conditional, only showing when size > 0.
• Testing:
  • TaskActions.spec.tsx: Updated tests to ensure delete button visibility for size = 0 and undefined.
  • Added test cases for delete button visibility with size = 0 and undefined.
• Problem Solved:
  • Fixes inconsistent delete button visibility between main chat and history screens.

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[daniel-lxs]

Closing PR as the issue cannot be reproduced. The delete button appears to be working correctly in the current implementation.