message: Support virtual workspace
diff: @@ -535,18 +535,12 @@ export class StructureTreeView {
  })
  vscode.workspace.onDidSaveTextDocument( (e: vscode.TextDocument) => {
  - if (extension.lwfs.isVirtualUri(e.uri)){
  - return
  - }
  if (extension.manager.hasBibtexId(e.languageId)) {
  void extension.structureViewer.computeTreeStructure()
  }
  })
  vscode.window.onDidChangeActiveTextEditor((e: vscode.TextEditor | undefined) => {
  - if (e && extension.lwfs.isVirtualUri(e.document.uri)){
  - return
  - }
  if (e && extension.manager.hasBibtexId(e.document.languageId)) {
  void extension.structureViewer.refreshView()
  }
  