Tech debt: mobile actions column missing grid placement at 768px breakpoint

[daveharmswebdev]

Context

In expense-list-row.component.ts, the .cell-actions column is not assigned a grid area in the @media (max-width: 768px) responsive layout. When the list header hides on mobile, the actions column (delete/WO buttons) has no explicit grid placement.

Details

• File: frontend/src/app/features/expenses/components/expense-list-row/expense-list-row.component.ts
• Issue: The mobile grid template does not include a cell-actions area, so the actions buttons may render in an unexpected position or be hidden
• Suggested fix: Add cell-actions to the mobile grid template areas and ensure the delete/create-WO buttons are accessible on mobile

Acceptance Criteria

• Actions column (delete, create WO) renders correctly on mobile viewport (< 768px)
• Buttons are tappable and not overlapping other content

Source

Found during PR #281 code review (Issue #6)