Move secrets and runners settings to actions settings (#24200)

This PR moves the secrets and runners settings to actions settings on
all settings(repo,org,user,admin) levels.

After this PR, if
[ENABLED](5e7543fcf4/custom/conf/app.example.ini (L2604))
inside `app.ini` under `[actions]` is set to `false`, the "Actions" tab
(including runners management and secrets management) will not be shown.

After, the settings under actions settings for each level:

1. Admin Level
"Runners Management"
<img width="1437" alt="Screen Shot 2023-04-26 at 14 34 20"
src="https://user-images.githubusercontent.com/17645053/234489731-15822d21-38e1-4560-8bbe-69f122376abc.png">

2. User Level
"Secrets Management"
<img width="1427" alt="Screen Shot 2023-04-26 at 14 34 30"
src="https://user-images.githubusercontent.com/17645053/234489795-68c9c0cb-24f8-4f09-95c6-458ab914c313.png">

3. Repo and Organization Levels
"Runners Management" and "Secrets Management" 
   Org:
<img width="1437" alt="Screen Shot 2023-04-26 at 14 35 07"
src="https://user-images.githubusercontent.com/17645053/234489996-f3af5ebb-d354-46ca-9087-a0b586845281.png">

<img width="1433" alt="Screen Shot 2023-04-26 at 14 35 14"
src="https://user-images.githubusercontent.com/17645053/234490004-3abf8fed-81fd-4ce2-837a-935dade1793d.png">

    Repo:
<img width="1419" alt="Screen Shot 2023-04-26 at 14 34 50"
src="https://user-images.githubusercontent.com/17645053/234489904-80c11038-4b58-462c-9d0b-8b7cf70bc2b3.png">
    
<img width="1430" alt="Screen Shot 2023-04-26 at 14 34 57"
src="https://user-images.githubusercontent.com/17645053/234489918-4e8d1fe2-9bcd-4d8a-96c1-238a8088d92e.png">

It also finished these tasks :

- [x] rename routers function "runners" to "actions", and refactor
related file names
- [x] check and modify part of the runners related functions to match
their name
- [x] Fix backend check caused by fmt check

---------

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

routers/web/repo/setting/secrets.go

@@ -0,0 +1,115 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package setting
+
+import (
+	"errors"
+	"net/http"
+
+	"code.gitea.io/gitea/modules/base"
+	"code.gitea.io/gitea/modules/context"
+	"code.gitea.io/gitea/modules/setting"
+	shared "code.gitea.io/gitea/routers/web/shared/secrets"
+)
+
+const (
+	// TODO: Separate secrets from runners when layout is ready
+	tplRepoSecrets base.TplName = "repo/settings/actions"
+	tplOrgSecrets  base.TplName = "org/settings/actions"
+	tplUserSecrets base.TplName = "user/settings/actions"
+)
+
+type secretsCtx struct {
+	OwnerID         int64
+	RepoID          int64
+	IsRepo          bool
+	IsOrg           bool
+	IsUser          bool
+	SecretsTemplate base.TplName
+	RedirectLink    string
+}
+
+func getSecretsCtx(ctx *context.Context) (*secretsCtx, error) {
+	if ctx.Data["PageIsRepoSettings"] == true {
+		return &secretsCtx{
+			OwnerID:         0,
+			RepoID:          ctx.Repo.Repository.ID,
+			IsRepo:          true,
+			SecretsTemplate: tplRepoSecrets,
+			RedirectLink:    ctx.Repo.RepoLink + "/settings/actions/secrets",
+		}, nil
+	}
+
+	if ctx.Data["PageIsOrgSettings"] == true {
+		return &secretsCtx{
+			OwnerID:         ctx.ContextUser.ID,
+			RepoID:          0,
+			IsOrg:           true,
+			SecretsTemplate: tplOrgSecrets,
+			RedirectLink:    ctx.Org.OrgLink + "/settings/actions/secrets",
+		}, nil
+	}
+
+	if ctx.Data["PageIsUserSettings"] == true {
+		return &secretsCtx{
+			OwnerID:         ctx.Doer.ID,
+			RepoID:          0,
+			IsUser:          true,
+			SecretsTemplate: tplUserSecrets,
+			RedirectLink:    setting.AppSubURL + "/user/settings/actions/secrets",
+		}, nil
+	}
+
+	return nil, errors.New("unable to set Secrets context")
+}
+
+func Secrets(ctx *context.Context) {
+	ctx.Data["Title"] = ctx.Tr("actions.actions")
+	ctx.Data["PageType"] = "secrets"
+	ctx.Data["PageIsSharedSettingsSecrets"] = true
+
+	sCtx, err := getSecretsCtx(ctx)
+	if err != nil {
+		ctx.ServerError("getSecretsCtx", err)
+		return
+	}
+
+	if sCtx.IsRepo {
+		ctx.Data["DisableSSH"] = setting.SSH.Disabled
+	}
+
+	shared.SetSecretsContext(ctx, sCtx.OwnerID, sCtx.RepoID)
+	if ctx.Written() {
+		return
+	}
+	ctx.HTML(http.StatusOK, sCtx.SecretsTemplate)
+}
+
+func SecretsPost(ctx *context.Context) {
+	sCtx, err := getSecretsCtx(ctx)
+	if err != nil {
+		ctx.ServerError("getSecretsCtx", err)
+		return
+	}
+	shared.PerformSecretsPost(
+		ctx,
+		sCtx.OwnerID,
+		sCtx.RepoID,
+		sCtx.RedirectLink,
+	)
+}
+
+func SecretsDelete(ctx *context.Context) {
+	sCtx, err := getSecretsCtx(ctx)
+	if err != nil {
+		ctx.ServerError("getSecretsCtx", err)
+		return
+	}
+	shared.PerformSecretsDelete(
+		ctx,
+		sCtx.OwnerID,
+		sCtx.RepoID,
+		sCtx.RedirectLink,
+	)
+}