Modernize ConfirmActionDropdown to ConfirmActionModal

[abhijit9040]

This PR addresses the TODO in confirm-action-dropdown.tsx by refactoring the implementation to use a Modal pattern. This change improves user safety by making destructive actions (deletes/clears) explicit and centered in the UI.

Changes:

• Replaced Dropdown with Modal from @nextui-org/react.
• Renamed props to modern conventions (description, confirmLabel).
• Updated usages in product-form.tsx, discount-codes.tsx, and display-product-modal.tsx.
• Added a new, comprehensive test suite for the Modal component.
• Removed the deprecated ConfirmActionDropdown file and associated TODO.

issue reference- #324

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[GautamBytes]

LGTM , Just try not to raise pr directly from origin main