Show lock owner instead of repo owner on LFS setting page (#31788)

Fix #31784.

Before:

<img width="1648" alt="image"
src="https://github.com/user-attachments/assets/03f32545-4a85-42ed-bafc-2b193a5d8023">

After:

<img width="1653" alt="image"
src="https://github.com/user-attachments/assets/e5bcaf93-49cb-421f-aac1-5122bc488b02">

(cherry picked from commit 0470646d46f90c20f40fde718be6ef8d8c84ee2c)

models/git/lfs_lock_list.go

@@ -0,0 +1,54 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/container"
+)
+
+// LFSLockList is a list of LFSLock
+type LFSLockList []*LFSLock
+
+// LoadAttributes loads the attributes for the given locks
+func (locks LFSLockList) LoadAttributes(ctx context.Context) error {
+	if len(locks) == 0 {
+		return nil
+	}
+
+	if err := locks.LoadOwner(ctx); err != nil {
+		return fmt.Errorf("load owner: %w", err)
+	}
+
+	return nil
+}
+
+// LoadOwner loads the owner of the locks
+func (locks LFSLockList) LoadOwner(ctx context.Context) error {
+	if len(locks) == 0 {
+		return nil
+	}
+
+	usersIDs := container.FilterSlice(locks, func(lock *LFSLock) (int64, bool) {
+		return lock.OwnerID, true
+	})
+	users := make(map[int64]*user_model.User, len(usersIDs))
+	if err := db.GetEngine(ctx).
+		In("id", usersIDs).
+		Find(&users); err != nil {
+		return fmt.Errorf("find users: %w", err)
+	}
+	for _, v := range locks {
+		v.Owner = users[v.OwnerID]
+		if v.Owner == nil { // not exist
+			v.Owner = user_model.NewGhostUser()
+		}
+	}
+
+	return nil
+}