v12 (#5712)

Co-authored-by: MeiMei <30769358+mei23@users.noreply.github.com>
Co-authored-by: Satsuki Yanagi <17376330+u1-liquid@users.noreply.github.com>

src/client/scripts/2fa.ts

@@ -0,0 +1,5 @@
+export function hexifyAB(buffer) {
+	return Array.from(new Uint8Array(buffer))
+		.map(item => item.toString(16).padStart(2, '0'))
+		.join('');
+}