fix: monitor does not start if not connected

Author: Akos Kitta

Diff for: arduino-ide-extension/src/browser/monitor-manager-proxy-client-impl.ts

@@ -166,12 +166,16 @@ export class MonitorManagerProxyClientImpl
         );
     }
 
-    const { selectedBoard, selectedPort } =
-      this.boardsServiceProvider.boardsConfig;
-    if (!selectedBoard || !selectedBoard.fqbn || !selectedPort) return;
+    if (!this.lastConnectedBoard || !this.lastConnectedBoard.board) {
+      return;
+    }
     try {
       this.clearVisibleNotification();
-      await this.server().startMonitor(selectedBoard, selectedPort, settings);
+      await this.server().startMonitor(
+        this.lastConnectedBoard.board,
+        this.lastConnectedBoard.port,
+        settings
+      );
     } catch (err) {
       const message = ApplicationError.is(err) ? err.message : String(err);
       this.previousNotificationId = this.notificationId(message);