fix focus for key binding in chat message lit

fix participant info view

Linphone/view/Control/Display/Chat/ChatListView.qml

@@ -447,7 +447,6 @@ ListView {
                 } else {
                     mainItem.chatClicked(modelData)
                     mainItem.currentIndex = model.index
-                    mainItem.forceActiveFocus()
                 }
             }
         }

Linphone/view/Control/Display/Chat/ChatMessagesListView.qml

@@ -46,7 +46,10 @@ ListView {
         })
     }
     
-    onChatChanged: lastItemVisible = false
+    onChatChanged: {
+        lastItemVisible = false
+        forceActiveFocus()
+    }
 
     Button {
         visible: !mainItem.lastItemVisible

Linphone/view/Page/Layout/Chat/GroupChatInfoParticipants.qml

@@ -38,17 +38,20 @@ ColumnLayout {
 		}
 	}
 
-    Rectangle {
+	Control.Control {
 		visible: expandButton.checked
 		Layout.fillWidth: true
 		Layout.topMargin: Math.round(9 * DefaultStyle.dp)
+		height: Math.min(contentColumn.implicitHeight, Math.round(90 * DefaultStyle.dp))
+		bottomPadding: Math.round(15 * DefaultStyle.dp)
+
+		background: Rectangle {
 			color: DefaultStyle.grey_100
 			radius: Math.round(15 * DefaultStyle.dp)
-        height: participants.length > 0 ? contentColumn.implicitHeight : Math.round(90 * DefaultStyle.dp)
+		}
 
-        ColumnLayout {
+		contentItem: ColumnLayout {
 			id: contentColumn
-            anchors.fill: parent
 			spacing: Math.round(16 * DefaultStyle.dp)
 			
 			Item {
@@ -205,11 +208,6 @@ ColumnLayout {
 				style: ButtonStyle.secondary
 				onClicked: mainItem.manageParticipantsRequested()
 				Layout.alignment: Qt.AlignHCenter
-				Layout.bottomMargin: Math.round(17 * DefaultStyle.dp)
-			}
-			Item {
-				visible: !manageParticipants.visible
-				Layout.bottomMargin: Math.round(7 * DefaultStyle.dp)
 			}
 		}
 	}