Move some repository related code into sub package (#19711)

* Move some repository related code into sub package

* Move more repository functions out of models

* Fix lint

* Some performance optimization for webhooks and others

* some refactors

* Fix lint

* Fix

* Update modules/repository/delete.go

Co-authored-by: delvh <dev.lh@web.de>

* Fix test

* Merge

* Fix test

* Fix test

* Fix test

* Fix test

Co-authored-by: delvh <dev.lh@web.de>

routers/web/explore/repo.go

@@ -7,7 +7,6 @@ package explore
 import (
 	"net/http"
 
-	"code.gitea.io/gitea/models"
 	"code.gitea.io/gitea/models/db"
 	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/modules/base"
@@ -81,7 +80,7 @@ func RenderRepoSearch(ctx *context.Context, opts *RepoSearchOptions) {
 	language := ctx.FormTrim("language")
 	ctx.Data["Language"] = language
 
-	repos, count, err = models.SearchRepository(&models.SearchRepoOptions{
+	repos, count, err = repo_model.SearchRepository(&repo_model.SearchRepoOptions{
 		ListOptions: db.ListOptions{
 			Page:     page,
 			PageSize: opts.PageSize,