Use standard ItemDelegates rather than the kirigami-addons special ones

src/qml/RoomDelegate.qml

@@ -10,10 +10,11 @@ import org.kde.kirigami as Kirigami
 import org.kde.kirigamiaddons.delegates as Delegates
 import org.kde.kirigamiaddons.labs.components as Components
 import org.kde.kitemmodels
+import org.kde.desktop.private as Private
 
 import org.kde.neochat
 
-Delegates.RoundedItemDelegate {
+QQC2.ItemDelegate {
     id: root
 
     required property int index
@@ -145,6 +146,11 @@ Delegates.RoundedItemDelegate {
         }
     }
 
+    background: Private.DefaultListItemBackground {
+        control: root
+        styling: Private.DefaultListItemBackground.Styling.List
+    }
+
     function createRoomListContextMenu() {
         const component = Qt.createComponent('org.kde.neochat', 'ContextMenu');
         if (component.status === Component.Error) {

src/qml/RoomListPage.qml

@@ -131,6 +131,7 @@ Kirigami.Page {
                 id: treeView
                 topMargin: Math.round(Kirigami.Units.smallSpacing / 2)
 
+                alternatingRows: false
                 clip: true
                 reuseItems: false