feat(DataTable)!: add items per page global settings

Author: kelsos

.storybook/app.ts

@@ -1,9 +1,13 @@
-import { RuiPlugin } from '../src';
+import { createRui } from '../src';
 import * as Icons from '../src/all-icons';
 import Vue from 'vue';
 
-Vue.use(RuiPlugin, {
-  icons: Object.values(Icons),
-});
+const RuiPlugin = createRui({
+  theme: {
+    icons: Object.values(Icons),
+  }
+})
+
+Vue.use(RuiPlugin);
 
 export const vueInstance = new Vue({ template: '<div />' }).$mount();