remove vuetifycss and materialicon -> use threeshake

@nuxt/vuetify etc...

pages/event/embedEvent.vue

@@ -2,10 +2,10 @@
 v-card
   v-card-title(v-text="$t('common.embed_title')")
   v-card-text
-        v-alert.mb-3.mt-1(type='info' show-icon) {{$t('common.embed_help')}}
+        v-alert.mb-3.mt-1(type='info' show-icon :icon='mdiInformation') {{$t('common.embed_help')}}
         v-alert.pa-5.my-4.blue-grey.darken-4.text-body-1.lime--text.text--lighten-3 <pre>{{code}}</pre>
           v-btn.float-end(text  color='primary' @click='clipboard(code)') {{$t("common.copy")}}
-            v-icon.ml-1 mdi-content-copy
+            v-icon.ml-1(v-text='mdiContentCopy')
         p.mx-auto
           .mx-auto
             gancio-event(:id='event.id' :baseurl='settings.baseurl')
@@ -17,9 +17,13 @@ v-card
 <script>
 import { mapState } from 'vuex'
 import clipboard from '../../assets/clipboard'
+import { mdiContentCopy, mdiInformation } from '@mdi/js'
 
 export default {
   name: 'EmbedEvent',
+  data() {
+    return { mdiContentCopy, mdiInformation }
+  },
   mixins: [clipboard],
   props: {
     event: { type: Object, default: () => ({}) }