feat: Delete unit [FC-0083] (#1773)

* Adds the delete menu item in unit cards.
* Delete a unit with a confirmation modal.
* Restore a component

src/generic/delete-modal/DeleteModal.jsx

@@ -51,6 +51,7 @@ const DeleteModal = ({
               e.stopPropagation();
               await onDeleteSubmit();
             }}
+            variant="brand"
             label={defaultBtnLabel}
           />
         </ActionRow>