UniversalEntry: Ctrl+I to expand/collapse current item

Ctrl+Y is reserved in QLineEdit.

src/vhelpue.cpp

@@ -68,7 +68,7 @@ bool VHelpUE::initListWidget()
         m_listWidget->addItem(tr("Ctrl+J: Go to next item"));
         m_listWidget->addItem(tr("Ctrl+K: Go to previous item"));
         m_listWidget->addItem(tr("Ctrl+L: Go to current item's parent item"));
-        m_listWidget->addItem(tr("Ctrl+Y: Expand/Collapse current item"));
+        m_listWidget->addItem(tr("Ctrl+I: Expand/Collapse current item"));
         m_listWidget->addItem(tr("Ctrl+S: Sort items"));
         m_listWidget->addItem(tr("Enter: Activate current item"));
         m_listWidget->addItem(tr("Ctrl+M: Browse current item folder or the folder containing current item"));

src/vuniversalentry.cpp

@@ -364,9 +364,9 @@ void VUniversalEntry::keyPressEvent(QKeyEvent *p_event)
 
         break;
 
-    case Qt::Key_Y:
+    case Qt::Key_I:
         if (VUtils::isControlModifierForVim(modifiers)) {
-            // Ctrl+Y to expand or collapse an item.
+            // Ctrl+I to expand or collapse an item.
             if (m_lastEntry) {
                 m_lastEntry->m_entry->toggleItemExpanded(m_lastEntry->m_id);
             }