Don't use `strong` tag to highlight unselectable items

library/Icinga/Web/Widget/ItemList/MigrationListItem.php

@@ -39,7 +39,11 @@ class MigrationListItem extends BaseListItem
 
         $title->addHtml(
             new HtmlElement('span', null, Text::create($parentDirs)),
-            new HtmlElement('strong', null, Text::create($this->item->getVersion() . '.sql'))
+            new HtmlElement(
+                'span',
+                Attributes::create(['class' => 'version']),
+                Text::create($this->item->getVersion() . '.sql')
+            )
         );
 
         if ($this->item->getLastState()) {

public/css/icinga/pending-migration.less

@@ -22,6 +22,10 @@
     .caption.empty-state {
       color: @gray-semilight;
     }
+
+    span.version {
+      color: @text-color;
+    }
   }
 
 .migration-form {