fix(frontend): Use yarn instead of npm for install on Heroku (#2335)
fix(frontend): Use yarn instead of npm for install on Heroku (#2335)


mozilla/pontoon,mozilla/pontoon,mathjazz/pontoon,mozilla/pontoon,mozilla/pontoon,mathjazz/pontoon,mathjazz/pontoon,mozilla/pontoon,mathjazz/pontoon,mathjazz/pontoon