[TypeScript] Fix <DeleteWithConfirmButton> does not accept the component prop

[bipul724]

Problem

Closes #9389. <DeleteWithConfirmButton component="a" /> fails to typecheck (Type '"a"' is not assignable to type '"button"'), although react-admin's <Button> and MUI's <Button> both accept a custom component. DeleteWithConfirmButtonProps extended the non-generic ButtonProps, which defaults the root component to 'button'.

Solution

• Make DeleteWithConfirmButton generic over its root component, following the same pattern as <Button> (forwardRef cast to a generic component type).
• DeleteWithConfirmButtonProps becomes a type alias with a new optional RootComponent type parameter (defaulting to 'button'), since an interface can't extend a type depending on a generic parameter. Existing usages are unaffected.
• DeleteButton now has an explicit type annotation (same style as Datagrid and Logout). Without it, the declaration emit fails with TS4023, because its inferred type expands the new type alias down to Button's non-exported Props. The emitted declaration resolves to the same type as before, so the public API is unchanged.

` (also mentioned in the issue) is intentionally typed like , and the other navigation buttons, with a LinkBase root since it navigates via to, so I left it unchanged.

How To Test

• Storybook: ra-ui-materialui/button/DeleteWithConfirmButton → With Component
• yarn test-unit packages/ra-ui-materialui/src/button/DeleteWithConfirmButton.spec.tsx packages/ra-ui-materialui/src/button/DeleteButton.spec.tsx
• yarn typecheck

Additional Checks

• The PR targets master for a bugfix
• The PR includes unit tests
• The PR includes one or several stories
• The documentation is up to date (types-only change, no doc update needed)

[Copilot]

Copilot was unable to review this pull request because the user who requested the review has reached their quota limit.