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/private/restore_repo.go

@@ -11,8 +11,8 @@ import (
 	"net/http"
 	"time"
 
+	"code.gitea.io/gitea/modules/json"
 	"code.gitea.io/gitea/modules/setting"
-	jsoniter "github.com/json-iterator/go"
 )
 
 // RestoreParams structure holds a data for restore repository
@@ -30,7 +30,6 @@ func RestoreRepo(ctx context.Context, repoDir, ownerName, repoName string, units
 	req := newInternalRequest(ctx, reqURL, "POST")
 	req.SetTimeout(3*time.Second, 0) // since the request will spend much time, don't timeout
 	req = req.Header("Content-Type", "application/json")
-	json := jsoniter.ConfigCompatibleWithStandardLibrary
 	jsonBytes, _ := json.Marshal(RestoreParams{
 		RepoDir:   repoDir,
 		OwnerName: ownerName,