Pass Grid's data source as props + Add GridEmpty for error messages.

components/GridEmpty.vue

@@ -0,0 +1,22 @@
+<template>
+  <div
+    class="bg-gray-500 text-white text-sm font-bold px-4 py-3 w-1/2 mx-auto"
+    role="alert"
+  >
+    <p>{{ message }}</p>
+  </div>
+</template>
+
+<script>
+export default {
+  name: "GridEmpty",
+  props: {
+    message: {
+      type: String,
+      default: "0 items to be shown."
+    }
+  }
+};
+</script>
+
+<style></style>