Use a standalone struct name for Organization (#17632)

* Use a standalone struct name for Organization

* recover unnecessary change

* make the code readable

* Fix template failure

* Fix template failure

* Move HasMemberWithUserID to org

* Fix test

* Remove unnecessary user type check

* Fix test

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

modules/repository/repo.go

@@ -50,7 +50,7 @@ func MigrateRepositoryGitData(ctx context.Context, u *models.User, repo *models.
 	repoPath := models.RepoPath(u.Name, opts.RepoName)
 
 	if u.IsOrganization() {
-		t, err := u.GetOwnerTeam()
+		t, err := models.OrgFromUser(u).GetOwnerTeam()
 		if err != nil {
 			return nil, err
 		}