Fix(frontend):展开收起按钮偶尔会被遮挡

当滚动条开始不存在但展开后滚动条出现时，点击详情页后触发。
由于没考虑到详情页存在的情况，滚动条出现后会将长度设置过长导致按钮被遮挡。

frontend/control/stack-pages/search-result-page.cpp

@@ -207,10 +207,18 @@ void SearchResultPage::initConnections()
         setWidth(672);
     });
     connect(m_resultArea, &ResultArea::scrollBarAppeared, this, [ & ]{
-        setWidth(672);
+        if (m_detailArea->isHidden()) {
+            setWidth(672);
+        } else {
+            setWidth(296);
+        }
     });
     connect(m_resultArea, &ResultArea::scrollBarIsHideen, this, [ & ]{
-        setWidth(672);
+        if (m_detailArea->isHidden()) {
+            setWidth(672);
+        } else {
+            setWidth(296);
+        }
     });
     connect(m_resultArea, &ResultArea::keyPressChanged, m_detailArea, &DetailArea::setWidgetInfo);
     connect(m_resultArea, &ResultArea::keyPressChanged, this, [=] () {