Add an abstract json layout to make it's easier to change json library (#16528)

* Add an abstract json layout to make it's easier to change json library

* Fix import

* Fix import sequence

* Fix blank lines

* Fix blank lines

modules/queue/manager.go

@@ -12,8 +12,8 @@ import (
 	"sync"
 	"time"
 
+	"code.gitea.io/gitea/modules/json"
 	"code.gitea.io/gitea/modules/log"
-	jsoniter "github.com/json-iterator/go"
 )
 
 var manager *Manager
@@ -110,7 +110,6 @@ func (m *Manager) Add(managed interface{},
 	configuration,
 	exemplar interface{}) int64 {
 
-	json := jsoniter.ConfigCompatibleWithStandardLibrary
 	cfg, _ := json.Marshal(configuration)
 	mq := &ManagedQueue{
 		Type:          t,