feat(i18n): add Vietnamese translation (#950)

HakuGuen

2024-03-01 1c42b6365cab71e1400e94178d39a7592aa47726

 quartz/styles/variables.scss

@@ -5,4 +5,5 @@
$topSpacing: 6rem;
$fullPageWidth: $pageWidth + 2 * $sidePanelWidth;
$boldWeight: 700;
$semiBoldWeight: 600;
$normalWeight: 400;