add disable workflow feature (#26413)

As title, that's simmilar with github.


![image](https://github.com/go-gitea/gitea/assets/25342410/9e8b2444-63e0-4e87-80da-730c1e4d09d6)



![image](https://github.com/go-gitea/gitea/assets/25342410/6c3a3345-3ba7-48c9-9acd-3e621632491b)

---------

Signed-off-by: a1012112796 <1012112796@qq.com>
Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: Jason Song <i@wolfogre.com>

routers/web/repo/actions/actions.go

@@ -137,6 +137,15 @@ func List(ctx *context.Context) {
 	actorID := ctx.FormInt64("actor")
 	status := ctx.FormInt("status")
 	ctx.Data["CurWorkflow"] = workflow
+
+	actionsConfig := ctx.Repo.Repository.MustGetUnit(ctx, unit.TypeActions).ActionsConfig()
+	ctx.Data["ActionsConfig"] = actionsConfig
+
+	if len(workflow) > 0 && ctx.Repo.IsAdmin() {
+		ctx.Data["AllowDisableOrEnableWorkflow"] = true
+		ctx.Data["CurWorkflowDisabled"] = actionsConfig.IsWorkflowDisabled(workflow)
+	}
+
 	// if status or actor query param is not given to frontend href, (href="/<repoLink>/actions")
 	// they will be 0 by default, which indicates get all status or actors
 	ctx.Data["CurActor"] = actorID