Allow download of configuration files

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Great!

It works for me: very useful, thanks!

+++ b/src/Controller/ConfigInspectorController.php
@@ -234,6 +239,27 @@ class ConfigInspectorController extends ControllerBase {
+    $data = $this->configInspectorManager->getConfigData($name);
+    unset($data['uuid']);
+    unset($data['_core']);
+    $data = Yaml::encode($data);

This is not what the core config export page does is it? If we are not downloading what we are inspecting then people will get confused.

Reroll against latest dev, removing unset() as suggested.

The patch can not be applied.

Add all required parent::__construct() containers into __construct() method of the ConfigInspectorManager class.

Fix the tests issue.

+++ b/src/Controller/ConfigInspectorController.php
@@ -148,7 +152,11 @@ class ConfigInspectorController extends ControllerBase {
+          'download' => [
+            '#markup' => Link::createFromRoute($this->t('Download'), new Url('config_inspector.download', ['name' => $name]))
+          ],

This results in a Fatal error: Link could not be converted to string. A patch to correct this renderable array is available at #3084666: Recoverable fatal error: Object of class Drupal\Core\Link could not be converted to string

Add the related issue mentioned by @idebr