message: Keep focus to tex file when opening a tab pdf viewer in a new group
  This was already supposed to work this way but a setTimeout was required
  to actually to make it work.
diff: @@ -114,7 +114,7 @@ export class Viewer {
  })
  panel.webview.html = this.getPDFViewerContent(uri)
  if (editor && sideColumn) {
  - vscode.window.showTextDocument(editor.document, editor.viewColumn)
  + setTimeout(() => vscode.window.showTextDocument(editor.document, editor.viewColumn), 500)
  }
  this.extension.logger.addLogMessage(`Open PDF tab for ${pdfFile}`)
  }
  