chore: move the go code into a subfolder

apps/api/pkg/grpc/message/message.go

@@ -0,0 +1,21 @@
+package message
+
+func (m *LocalizedMessage) LocalizationKey() string {
+	return m.Key
+}
+
+func (m *LocalizedMessage) SetLocalizedMessage(message string) {
+	m.LocalizedMessage = message
+}
+
+func NewLocalizedEventType(key string) *LocalizedMessage {
+	return &LocalizedMessage{Key: "EventTypes." + key}
+}
+
+func NewLocalizedAggregateType(key string) *LocalizedMessage {
+	return &LocalizedMessage{Key: "AggregateTypes." + key}
+}
+
+func NewLocalizedMessage(key string) *LocalizedMessage {
+	return &LocalizedMessage{Key: key}
+}