Docker: fixed javascript error when no containers exist

plugins/dynamix.docker.manager/DockerContainers.page

@@ -57,6 +57,7 @@ table tbody td{line-height:normal}
 <script src="<?autov('/webGui/javascript/jquery.switchbutton.js')?>"></script>
 <script src="<?autov('/plugins/dynamix.docker.manager/javascript/docker.js')?>"></script>
 <script>
+var docker = [];
 <?if (!$tabbed):?>
 $('#title').append("<span id='busy' class='red-text strong' style='display:none;margin-left:40px'><?=$busy?></span>");
 <?else:?>

plugins/dynamix.docker.manager/include/DockerContainers.php

@@ -41,7 +41,7 @@ if (file_exists($user_prefs)) {
 
 // Read container info
 $allInfo = $DockerTemplates->getAllInfo();
-$docker = ['var docker=[];'];
+$docker = [];
 $null = '0.0.0.0';
 
 $autostart = @file($autostart_file, FILE_IGNORE_NEW_LINES) ?: [];