Make the banner buttons work

For invitation accept/decline.
Forget remains to be implemented in nio.

harmonyqml/components/chat/Banner.qml

@@ -80,6 +80,10 @@ Rectangle {
                     icon.width: 32
                     display: bannerButtons.displayMode
 
+                    onClicked:
+                        Backend.clientManager.clients[chatPage.userId].
+                        call(modelData.clientFunction, modelData.clientArgs)
+
                     Layout.maximumWidth: bannerButtons.compact ? height : -1
                     Layout.fillHeight: true
                 }

harmonyqml/components/chat/InviteBanner.qml

@@ -19,11 +19,15 @@ Banner {
             text: "Accept",
             iconName: "accept",
             iconColor: Qt.hsla(0.45, 0.9, 0.3, 1),
+            clientFunction: "joinRoom",
+            clientArgs: [chatPage.roomId],
         },
         {
             text: "Decline",
             iconName: "decline",
             iconColor: Qt.hsla(0.95, 0.9, 0.35, 1),
+            clientFunction: "leaveRoom",
+            clientArgs: [chatPage.roomId],
         }
     ]
 }

harmonyqml/components/chat/LeftBanner.qml

@@ -15,6 +15,8 @@ Banner {
             text: "Forget",
             iconName: "trash_can",
             iconColor: Qt.hsla(0.95, 0.9, 0.35, 1),
+            clientFunction: "forgetRoom",
+            clientArgs: [chatPage.roomId],
         }
     ]
 }