fix: replece resize to setFixedSize

to fixed size,please used setFixedSize

PMS: BUG-351725

Author: ut003640

dock-network-plugin/dockcontentwidget.h

@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: 2024 UnionTech Software Technology Co., Ltd.
+// SPDX-FileCopyrightText: 2026 UnionTech Software Technology Co., Ltd.
 //
 // SPDX-License-Identifier: LGPL-3.0-or-later
 
@@ -76,7 +76,7 @@ public Q_SLOTS:
         m_netView->setMaxHeight(h);
         if (m_netView->height() > h)
             m_netView->setFixedHeight(h);
-        resize(m_netView->width(), qMax(m_minHeight, m_netView->height() + 20 + m_mainLayout->contentsMargins().top() + (m_netCheckBtn->isVisibleTo(this) ? (m_netSetBtn->height() + m_netCheckBtn->height() + 10) : m_netSetBtn->height())));
+        setFixedSize(m_netView->width(), qMax(m_minHeight, m_netView->height() + 20 + m_mainLayout->contentsMargins().top() + (m_netCheckBtn->isVisibleTo(this) ? (m_netSetBtn->height() + m_netCheckBtn->height() + 10) : m_netSetBtn->height())));
     }
     void setNetCheckBtnVisible(bool visible) {
         m_netCheckBtn->setVisible(visible);