BOR UI - update modernization types

- feature flag new types?
- https://github.com/bcgov-registries/beneficial-ownership/blob/main/bor-ui/src/utils/search-entity-groups.ts#L28
- testing

Start with bor-ui/src/utils/search-entity-groups.ts at the referenced line and inspect how modernization types are represented and whether a feature flag already exists. Review the BOR UI testing setup and identify the relevant tests to update or add. Done means the new types are handled behind the intended flag and the behavior is covered by tests.

Written by the indexing model from the issue text.