Add icon for Security tab and warning/success styling for 2fa card

src/UI/Settings/UITabSecurity.js

@@ -28,7 +28,7 @@ export default {
 
         // configure 2FA
         if(!user.is_temp){
-            h += `<div class="settings-card">`;
+            h += `<div class="settings-card ${user.otp ? 'settings-card-success' : 'settings-card-warning'}">`;
                 h += `<div>`;
                     h += `<strong style="display:block;">${i18n('two_factor')}</strong>`;
                     h += `<span class="user-otp-state" style="display:block; margin-top:5px;">${
@@ -42,7 +42,6 @@ export default {
             h += `</div>`;
         }
 
-
         return h;
     },
     init: ($el_window) => {