Fix duplicated editor tabs (#1012)

Author: msujew

arduino-ide-extension/src/browser/arduino-ide-frontend-module.ts

@@ -529,6 +529,8 @@ export default new ContainerModule((bind, unbind, isBound, rebind) => {
 
   rebind(TheiaEditorManager).to(EditorManager);
 
+  rebind(TheiaEditorManager).to(EditorManager);
+
   // replace search icon
   rebind(TheiaSearchInWorkspaceFactory)
     .to(SearchInWorkspaceFactory)