remove scroll-to-bottom button

gui/main.qml

@@ -1224,9 +1224,6 @@ ApplicationWindow {
             Item {
                 Layout.fillWidth: true
                 Layout.fillHeight: true
-                
-                ScrollView {
-                    anchors.fill: parent
                 clip: true
 
                 // Placeholder when no agent selected or disconnected
@@ -1590,38 +1587,7 @@ property bool blockExpanded: {
         }
                 }
                 }
-                }
                 
-                // Scroll-to-bottom floating button
-                Rectangle {
-                    id: scrollToBottomBtn
-                    width: 40
-                    height: 40
-                    radius: 20
-                    color: theme.highlightColor
-                    opacity: 0.9
-                    anchors.right: parent.right
-                    anchors.bottom: parent.bottom
-                    anchors.margins: 16
-                    visible: !chatView.shouldAutoScroll && chatView.count > 0 && chatView.visible
-                    
-                    Label {
-                        anchors.centerIn: parent
-                        text: "↓"
-                        font.pixelSize: 20
-                        font.bold: true
-                        color: theme.highlightedTextColor
-                    }
-                    
-                    MouseArea {
-                        anchors.fill: parent
-                        cursorShape: Qt.PointingHandCursor
-                        onClicked: {
-                            chatView.shouldAutoScroll = true
-                            chatView.positionViewAtEnd()
-                        }
-                    }
-                }
             }
 
             Rectangle { Layout.fillWidth: true; height: 1; color: theme.midColor }