Note! Let's do this only for custom actions.
Add possibility to configure the icon on the action menu dropdown.
Also display configured icon on the action dialog.
Design system link: https://www.figma.com/design/W6Bty2ujZg29tv5CPWzCcd/OpenCRVS-Design-System....?node-id=18-681&t=b8SeHLf192KXIcNE-1
