Yubikey 2fa setup

src/less/vault.less

@@ -519,6 +519,10 @@ h1, h2, h3, h4, h5, h6 {
     color: @text-muted;
 }
 
+.monospaced {
+    font-family: @font-family-monospace;
+}
+
 .tooltip-wrapper {
     display: inline-block;
 }