Move team related functions to service layer (#32537)

There are still some functions under `models` after last big refactor
about `models`. This change will move all team related functions to
service layer with no code change.

routers/web/repo/setting/collaboration.go

@@ -17,7 +17,6 @@ import (
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/services/context"
 	"code.gitea.io/gitea/services/mailer"
-	org_service "code.gitea.io/gitea/services/org"
 	repo_service "code.gitea.io/gitea/services/repository"
 )
 
@@ -185,7 +184,7 @@ func AddTeamPost(ctx *context.Context) {
 		return
 	}
 
-	if err = org_service.TeamAddRepository(ctx, team, ctx.Repo.Repository); err != nil {
+	if err = repo_service.TeamAddRepository(ctx, team, ctx.Repo.Repository); err != nil {
 		ctx.ServerError("TeamAddRepository", err)
 		return
 	}