Wizard: Use <pre> instead of <textarea> for displaying the setup's log

modules/setup/application/views/scripts/index/parts/finish.phtml

@@ -27,7 +27,7 @@
     ); ?>
   <?php endif ?>
   </div>
-  <textarea class="report" readonly><?= join("\n\n", array_map(function($a) {
+  <pre class="log-output"><?= join("\n\n", array_map(function($a) {
     return join("\n", $a);
-  }, $report)); ?></textarea>
+  }, $report)); ?></pre>
 </div>

public/css/icinga/setup.less

@@ -286,9 +286,10 @@ form#setup_requirements {
     }
   }
 
-  textarea.report {
+  pre.log-output {
     width: 66%;
     height: 25em;
+    max-height: none;
   }
 
   div.buttons {