🐛 Bug Report

When sign in, it pops up "LeetCode extension needs Node.js installed in environment path".
But node command has been in my environment path.
image

To Reproduce

select "LeetCode Sign In" command.

Expected behavior

pop up login window.

Your Environment

• os: macbook pro, macOS 10.14.3
• extension settings:
  RalfZhang.filetemplate
  SirTori.indenticator
  aaron-bond.better-comments
  abusaidm.html-snippets
  alefragnani.project-manager
  anseki.vscode-color
  austin.code-gnu-global
  christian-kohler.path-intellisense
  CoenraadS.bracket-pair-colorizer
  dbaeumer.vscode-eslint
  donjayamanne.githistory
  eamodio.gitlens
  ecmel.vscode-html-css
  eg2.tslint
  emilast.LogFileHighlighter
  felipecaputo.git-project-manager
  formulahendry.auto-close-tag
  formulahendry.code-runner
  goessner.mdmath
  GrapeCity.gc-excelviewer
  HookyQR.beautify
  humao.rest-client
  humy2833.ftp-simple
  James-Yu.latex-workshop
  johnstoncode.svn-scm
  kondratiev.sshextension
  lextudio.restructuredtext
  liximomo.sftp
  lonefy.vscode-JS-CSS-HTML-formatter
  MS-CEINTL.vscode-language-pack-zh-hans
  ms-mssql.mssql
  ms-python.anaconda-extension-pack
  ms-python.python
  ms-vscode.cpptools
  ms-vscode.Go
  neuron.neuron-IPE
  octref.vetur
  redhat.java
  redhat.vscode-yaml
  ritwickdey.LiveServer
  robertohuertasm.vscode-icons
  rust-lang.rust
  ryu1kn.partial-diff
  SBSnippets.pytorch-snippets
  Shan.code-settings-sync
  shengchen.vscode-leetcode
  streetsidesoftware.code-spell-checker
  VisualStudioExptTeam.vscodeintellicode
  vscjava.vscode-java-debug
  vscjava.vscode-java-dependency
  vscjava.vscode-java-pack
  vscjava.vscode-java-test
  vscjava.vscode-maven
  waderyan.gitblame
  yzane.markdown-pdf
  yzhang.markdown-all-in-one
  zhuangtongfa.Material-theme
  Zignd.html-css-class-completion
• nodejs version: v10.15.2
• vscode version: 1.32.1
• extension version: 0.12.0