Add helper method to format a dependency

internal/domain/dependency.go

 package domain
 
+import (
+	"fmt"
+)
+
 type Dependency struct {
 	Organisation string
 	Repo         string
@@ -11,3 +15,7 @@ type Dependency struct {
 	PackageManager  string
 	PackageFilePath string
 }
+
+func (d Dependency) DependencyDetails() string {
+	return fmt.Sprintf("(%s@%s)", d.PackageName, d.Version)
+}