Remove Bulma dependency

packages/notification/package.json

@@ -26,7 +26,6 @@
     "vpu-common": "file:./vendor/common"
   },
   "dependencies": {
-    "bulma": "^0.7.5",
     "lit-element": "^2.1.0"
   },
   "scripts": {

packages/notification/src/vpu-notification-demo.js

 import {i18n} from './i18n';
 import {send as notify} from 'vpu-common/notification';
-import {html, LitElement} from 'lit-element';
+import {css, html, LitElement} from 'lit-element';
 import './vpu-notification';
 import * as commonUtils from 'vpu-common/utils';
-import bulmaCSSPath from 'bulma/css/bulma.min.css';
+import * as commonStyles from "vpu-common/styles";
 
 class NotificationDemo extends LitElement {
     constructor() {
@@ -25,11 +25,17 @@ class NotificationDemo extends LitElement {
         });
     }
 
+    static get styles() {
+        // language=css
+        return css`
+            ${commonStyles.getThemeCSS()}
+            ${commonStyles.getGeneralCSS()}
+            ${commonStyles.getButtonCSS()}
+        `;
+    }
+
     render() {
-        const bulmaCSS = commonUtils.getAssetURL(bulmaCSSPath);
         return html`
-            <link rel="stylesheet" href="${bulmaCSS}">
-
             <section class="section">
                 <div class="container">
                     <h1 class="title">Notification-Demo</h1>