config/file: unify look and feel, link back

fixes #13087

application/controllers/ConfigController.php

@@ -189,16 +189,19 @@ class ConfigController extends ActionController
             'url'       => $this->getRequest()->getUrl(),
         ))->activate('file');
 
-        if ($fileOnly) {
-            $tabs->remove('config');
-            if ($tabs->has('deployment')) {
-                $tabs->remove('deployment');
-            }
+        $params = $this->getConfigTabParams();
+        if ('deployment' === $this->params->get('backTo')) {
+            $this->view->addLink = $this->view->qlink(
+                $this->translate('back'),
+                'director/deployment',
+                array('id' => $params['deployment_id']),
+                array('class' => 'icon-left-big')
+            );
         } else {
             $this->view->addLink = $this->view->qlink(
                 $this->translate('back'),
                 'director/config/files',
-                $this->getConfigTabParams(),
+                $params,
                 array('class' => 'icon-left-big')
             );
         }

library/Director/StartupLogRenderer.php

@@ -78,7 +78,7 @@ class StartupLogRenderer
             'config_checksum' => $deploymentLog->getConfigHexChecksum(),
             'deployment_id'   => $deploymentLog->get('id'),
             'file_path'       => $filename,
-            'fileOnly'        => true,
+            'backTo'          => 'deployment'
         );
         if ($lineNumber !== null) {
             $params['highlight'] = $lineNumber;
@@ -90,7 +90,6 @@ class StartupLogRenderer
             'director/config/file',
             $params,
             array(
-                'data-base-target' => '_next',
                 'title' => $stageDir . $filename
             )
         ) . $suffix;