Fix empty cart button

Author: luukschakenraad

app/code/Magento/Checkout/view/frontend/templates/cart/form.phtml

@@ -24,7 +24,7 @@
         <?php endif ?>
         <table id="shopping-cart-table"
                class="cart items data table"
-               data-mage-init='{"shoppingCart":{"emptyCartButton": "action.clear",
+               data-mage-init='{"shoppingCart":{"emptyCartButton": ".action.clear",
                "updateCartActionContainer": "#update_cart_action_container"}}'>
             <caption role="heading" aria-level="2" class="table-caption"><?= /* @escapeNotVerified */ __('Shopping Cart Items') ?></caption>
             <thead>