Added plugin controller (WIP)

app/Template/config/sidebar.php

@@ -4,9 +4,6 @@
         <li <?= $this->app->checkMenuSelection('config', 'index') ?>>
             <?= $this->url->link(t('About'), 'config', 'index') ?>
         </li>
-        <li <?= $this->app->checkMenuSelection('config', 'plugins') ?>>
-            <?= $this->url->link(t('Plugins'), 'config', 'plugins') ?>
-        </li>
         <li <?= $this->app->checkMenuSelection('config', 'application') ?>>
             <?= $this->url->link(t('Application settings'), 'config', 'application') ?>
         </li>
@@ -36,4 +33,4 @@
         </li>
         <?= $this->hook->render('template:config:sidebar') ?>
     </ul>
-</div>
+</div>