Merge pull request #12921 from antobinary/aug5-locales

bigbluebutton-html5/public/locales/ar.json

bigbluebutton-html5/public/locales/de.json

bigbluebutton-html5/public/locales/eu.json

bigbluebutton-html5/public/locales/fr.json

bigbluebutton-html5/public/locales/gl.json

bigbluebutton-html5/public/locales/it_IT.json

bigbluebutton-html5/public/locales/ja.json

bigbluebutton-html5/public/locales/lt_LT.json

bigbluebutton-html5/public/locales/nl.json

bigbluebutton-html5/public/locales/ru.json

bigbluebutton-html5/public/locales/tr_TR.json

bigbluebutton-html5/public/locales/zh_TW.json