Initial Nuxt frontend import

- Complete GGZ Ecademy Nuxt.js user portal
- Learning products browser and management
- Member management interface
- User authentication and roles
- Multi-language support (NL/EN)
- Vuex store for state management
- Component-based architecture

components/UI/FullScreen/FullScreen.vue

@@ -0,0 +1,21 @@
+<template>
+  <v-btn icon @click="handleFullScreen()">
+    <v-icon small>icon-fullscreen</v-icon>
+  </v-btn>
+</template>
+
+<script>
+  import Util from '@/util';
+
+  export default {
+    methods: {
+      handleFullScreen () {
+        Util.toggleFullScreen();
+      }
+    }
+  };
+</script>
+
+<style lang="scss" scoped>
+
+</style>