feat: get all plans and improvement

internal/accessor/subscribeplan/get_all.go

@@ -0,0 +1,15 @@
+package subscribeplanrepository
+
+import (
+	subscribeplandomain "github.com/ardeman/project-legalgo-go/internal/domain/subscribe_plan"
+)
+
+func (s *SubsPlan) GetAll() ([]subscribeplandomain.SubscribePlan, error) {
+	var subscribePlans []subscribeplandomain.SubscribePlan
+
+	if err := s.DB.Find(&subscribePlans).Error; err != nil {
+		return nil, err
+	}
+
+	return subscribePlans, nil
+}