message: Fix wrong structure: first section is child of preamble labels
diff: @@ -451,7 +451,7 @@ export class SectionNodeProvider implements vscode.TreeDataProvider<Section> {
  }
  })
  - const sections: Section[] = preambleNodes
  + const sections: Section[] = []
  flatSections.forEach(section => {
  if (section.depth - lowest === 0) {
  @@ -479,7 +479,7 @@ export class SectionNodeProvider implements vscode.TreeDataProvider<Section> {
  }
  })
  - return sections
  + return [...preambleNodes, ...sections]
  }
  private buildLaTeXSectionToLine(structure: Section[], lastLine: number) {
  