message: Fix go to line offset
  Related to
diff: @@ -137,17 +137,19 @@ export class SectionNodeProvider implements vscode.TreeDataProvider<Section> {
  return children
  }
  content = utils.stripCommentsAndVerbatim(content)
  - const startPos = content.search(/\\begin{document}/gm)
  const endPos = content.search(/\\end{document}/gm)
  - const offset = '\\begin{document}'.length
  - content = content.substring(startPos > -1 ? startPos + offset : 0, endPos > -1 ? endPos : undefined)
  + content = content.substring(0, endPos > -1 ? endPos : undefined)
  + const startPos = content.search(/\\begin{document}/gm)
  + let startLineNumber = 0
  + if (startPos > -1) {
  + startLineNumber = content.substring(0, startPos).split('\n').length
  + }
  const structureModel = new StructureModel(this.extension, filePath, rootStack, children, newFileStack, sectionNumber)
  -
  const envNames = this.showFloats ? ['figure', 'frame', 'table'] : ['frame']
  const lines = content.split('\n')
  - for (let lineNumber = 0; lineNumber < lines.length; lineNumber++) {
  + for (let lineNumber = startLineNumber; lineNumber < lines.length; lineNumber++) {
  const line = lines[lineNumber]
  // Environment part
  structureModel.buildEnvModel(envNames, lines, lineNumber)
  