Fix issue with date edit macro
Fix issue with date edit macro

The date display macro used 'default' to set a default as empty string if no value was passed in. The default behaviour for this only applies the default for 'undefined'. When a null was passed in it would not be defaulted which caused the date control to fail.

uktrade/data-hub-fe-beta2,uktrade/data-hub-frontend,uktrade/data-hub-frontend,uktrade/data-hub-frontend,uktrade/data-hub-fe-beta2