feat: asset storage (#1696)

* feat: remove assets

* feat: minio implementation

* fix: remove assets from tests

* feat: minio implementation

* feat: Env vars

* fix: sprintf

* fix: sprintf

* Update internal/eventstore/repository/repository.go

Co-authored-by: Livio Amstutz <livio.a@gmail.com>

* fix: error handling

Co-authored-by: Livio Amstutz <livio.a@gmail.com>

internal/command/org_policy_mail_template_test.go

@@ -92,7 +92,6 @@ func TestCommandSide_AddMailTemplate(t *testing.T) {
 								),
 							),
 						},
-						nil,
 					),
 				),
 			},
@@ -233,7 +232,6 @@ func TestCommandSide_ChangeMailTemplate(t *testing.T) {
 								newMailTemplateChangedEvent(context.Background(), "org1", "template2"),
 							),
 						},
-						nil,
 					),
 				),
 			},
@@ -342,7 +340,6 @@ func TestCommandSide_RemoveMailTemplate(t *testing.T) {
 									&org.NewAggregate("org1", "org1").Aggregate),
 							),
 						},
-						nil,
 					),
 				),
 			},