add lang global attribute on locale change (#1034)
add lang global attribute on locale change (#1034)

* add lang global attribute on locale change

* inline set language tag in store plugin

yunity/karrot-frontend,yunity/karrot-frontend,yunity/karrot-frontend,yunity/karrot-frontend,yunity/foodsaving-frontend,yunity/foodsaving-frontend,yunity/foodsaving-frontend,yunity/foodsaving-frontend