Fix admin style issues

assets/stylesheets/common/wizard-admin.scss

@@ -209,6 +209,11 @@
 
 .admin-wizard-buttons {
   margin-top: 20px;
+  display: flex;
+  
+  .btn {
+    margin-right: 1em;
+  }
 }
 
 .admin-wizard-container.settings {
@@ -471,6 +476,10 @@
       margin-bottom: 10px;
       margin-right: 10px;
     }
+    
+    .btn {
+      height: 32px;
+    }
   }
 
   .sortable-placeholder {