Mark parent directory as viewed when all files are viewed (#33958)

Fix #25644 

---------

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

routers/web/repo/commit.go

@@ -369,7 +369,7 @@ func Diff(ctx *context.Context) {
 			return
 		}
 
-		ctx.PageData["DiffFiles"] = transformDiffTreeForUI(diffTree, nil)
+		ctx.PageData["DiffFileTree"] = transformDiffTreeForWeb(diffTree, nil)
 	}
 
 	statuses, _, err := git_model.GetLatestCommitStatus(ctx, ctx.Repo.Repository.ID, commitID, db.ListOptionsAll)