fix d-edit-none

src/client/styles/scss/_on-edit.scss

@@ -83,11 +83,6 @@ body.on-edit {
     display: none !important;
   }
 
-  // hide alert siteurl undefined
-  .not-site-url {
-    display: none;
-  }
-
   // show only either Edit button or HackMD button
   &.hackmd .nav-tab-edit {
     display: none;

src/server/views/widget/alert_siteurl_undefined.html

@@ -1,5 +1,5 @@
 {% if !getConfig('crowi', 'app:siteUrl') %}
-<div class="not-site-url alert alert-danger mb-0 px-4 py-2">
+<div class="alert alert-danger d-edit-none mb-0 px-4 py-2">
   <i class="icon-exclamation"></i>
   {{ t("security_setting.alert_siteUrl_is_not_set", { link:t('App Settings')}) }}
 </div>