Revert renaming 'zh-Hans.js' path to 'zh-HANS.js'
Revert renaming 'zh-Hans.js' path to 'zh-HANS.js'

See Issue #6796, for discussion on i18n code generation tools
mrpau/kolibri,mrpau/kolibri,learningequality/kolibri,indirectlylit/kolibri,mrpau/kolibri,learningequality/kolibri,mrpau/kolibri,indirectlylit/kolibri,learningequality/kolibri,indirectlylit/kolibri,indirectlylit/kolibri,learningequality/kolibri