Use string instead of ID type

ulid/ulid.go

@@ -4,7 +4,6 @@ import (
 	"math/rand"
 	"time"
 
-	"git.javil.eu/jacob1123/budgeteer"
 	"github.com/oklog/ulid"
 )
 
@@ -22,7 +21,7 @@ func NewGenerator() (*UlidGenerator, error) {
 	return ug, nil
 }
 
-func (ug *UlidGenerator) New() budgeteer.ID {
+func (ug *UlidGenerator) New() string {
 	id := ulid.MustNew(ulid.Timestamp(time.Now()), ug.entropy)
-	return budgeteer.ID(id)
+	return id.String()
 }