new: [UI] connection test field added for the brood index

templates/element/genericElements/IndexTable/Fields/connection_test.php

@@ -0,0 +1,14 @@
+<?php
+    $data = $this->Hash->extract($row, $field['data_path'])[0];
+    echo sprintf(
+        '<div id="connection_test_%s"><span role="button" tabindex="0" aria-label="%s" title="%s" class="btn btn-primary btn-sm" onClick="%s">%s</span></div>',
+        h($data),
+        __('Test the connection to the remote instance'),
+        __('Test the connection to the remote instance'),
+        sprintf(
+            "testConnection('%s');",
+            h($data)
+        ),
+        __('Run')
+    );
+?>