chatgui: double-click member edit, fix delegate backgrounds; transport: invite_sync/member_sync robustness

tools/chatgui/src/accountlist.cpp

@@ -73,6 +73,7 @@ AccountList::AccountList(DbManager* db, QWidget *parent)
     layout->addWidget(m_detailText, 2);
 
     connect(m_listView, &QListView::clicked, this, &AccountList::onMemberClicked);
+    connect(m_listView, &QListView::doubleClicked, this, &AccountList::onMemberDoubleClicked);
 
     m_refreshTimer = new QTimer(this);
     m_refreshTimer->start(2000);
@@ -165,6 +166,15 @@ void AccountList::showMemberDetail(quint64 nodeId) {
     m_detailText->setPlainText(text);
 }
 
+void AccountList::onMemberDoubleClicked(const QModelIndex& index) {
+    if (!index.isValid()) return;
+    quint64 nodeId = m_model->nodeIdAt(index.row());
+    if (!nodeId) return;
+    QString name = m_model->data(index, Qt::DisplayRole).toString();
+    MemberPropsDialog dlg(m_db, m_channelId, nodeId, name, this);
+    dlg.exec();
+}
+
 void AccountList::onMemberContextMenu(const QPoint& pos) {
     QModelIndex index = m_listView->indexAt(pos);
     if (!index.isValid()) return;