Added support for grouping fields

src/Plugin/views/style/CardGrid.php

@@ -28,11 +28,28 @@ class CardGrid extends DefaultStyle {
 	 *
 	 * @var bool
 	 */
-	protected $usesRowClass = false;
+	protected $usesRowClass = true;
 
+	/**
+	 * Whether the format uses options
+	 *
+	 * @var bool
+	 */
 	protected $usesoptions = true;
 
+	/**
+	 * Whether the format will allow rendering fields
+	 *
+	 * @var bool
+	 */
 	protected $renderFields = true;
 
+	/**
+	 * Whether the format allows grouping
+	 *
+	 * @var bool
+	 */
+	protected $usesgrouping = true;
+
 
 }
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