* adding vietnamese * ran npm run test:updatesnapshot * ran npm run test:updatesnapshot * Update i18n.jsx * updatesed snapshot * fix whitespace in snapshots * add vi as supported server locale * update docs to point at server-side list of supported locales * removed incorrect translation --------- Co-authored-by: Tom De Moor <tom@controlaltdieliet.be> Co-authored-by: Mattermost Build <build@mattermost.com> Co-authored-by: Jesse Hallam <jesse.hallam@gmail.com>