fix: use toUtf8() instead of toLatin1() for tr() calls

Fix Chinese character corruption in translation lookup by using
UTF-8 encoding instead of Latin-1 which cannot handle non-ASCII chars.

修复翻译查找中因Latin-1编码导致中文字符变为问号的问题，改用UTF-8编码。

Log: 修复中文界面下处理器表头显示问号的问题
PMS: BUG-351713
Influence: 修复translateStr()和getTableHeader()两处toLatin1()调用，
确保中文等非ASCII字符在翻译查找时正确保留，影响所有设备信息的中文显示。

Author: wyu71

deepin-devicemanager/src/DeviceManager/DeviceInfo.cpp

@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: 2022 UnionTech Software Technology Co., Ltd.
+// SPDX-FileCopyrightText: 2022 - 2026 UnionTech Software Technology Co., Ltd.
 //
 // SPDX-License-Identifier: GPL-3.0-or-later
 
@@ -48,7 +48,7 @@ DeviceBaseInfo::~DeviceBaseInfo()
 
 const QString DeviceBaseInfo::translateStr(const QString &inStr)
 {
-    return tr(inStr.toLatin1());
+    return tr(inStr.toUtf8());
 }
 
 const QString DeviceBaseInfo::nameTr()
@@ -116,7 +116,7 @@ const QStringList &DeviceBaseInfo::getTableHeader()
     }
 
     for (const auto &item : m_TableHeader) {
-        QString trKey = tr(item.toLatin1());
+        QString trKey = tr(item.toUtf8());
         if (trKey.isEmpty())
             m_TableHeaderTr.append(item);
         else