fix offset

src/client/js/components/Admin/App/MailSetting.jsx

@@ -74,7 +74,7 @@ class MailSetting extends React.Component {
         </div>
 
         <div className="row mb-5">
-          <div className="col-3 col-offset-3">
+          <div className="col-3 offset-3">
             <label>{t('admin:app_setting.user')}</label>
             <input
               className="form-control"

src/client/js/components/Admin/App/PluginSetting.jsx

@@ -42,7 +42,7 @@ class PluginSetting extends React.Component {
         <p className="card well">{t('admin:app_setting.enable_plugin_loading')}</p>
 
         <div className="row mb-5">
-          <div className="col-offset-3 col-6 text-left">
+          <div className="offset-3 col-6 text-left">
             <div className="checkbox checkbox-success">
               <input
                 id="isEnabledPlugins"

src/client/js/components/Admin/App/SiteUrlSetting.jsx

@@ -43,8 +43,8 @@ class SiteUrlSetting extends React.Component {
           && (<p className="alert alert-danger"><i className="icon-exclamation"></i> {t('admin:app_setting.site_url_warn')}</p>)}
 
         <div className="row">
-          <div className="col-md-12">
-            <div className="col-offset-3">
+          <div className="col-lg-12">
+            <div className="offset-3">
               <table className="table settings-table">
                 <colgroup>
                   <col className="from-db" />