Revert "Modified Ref"

This reverts commit c851cd718ce5d4b69a658986a3e11d9947ce38b5.

packages/app/src/interfaces/common.ts

@@ -4,4 +4,4 @@
 
 
 // Foreign key field
-export type Ref<T> = T & string;
+export type Ref<T> = string | T;