Separate notification into its own component, fix follow notification type

src/components/notification/notification.js

@@ -0,0 +1,24 @@
+import Status from '../status/status.vue'
+import StillImage from '../still-image/still-image.vue'
+import UserCardContent from '../user_card_content/user_card_content.vue'
+
+const Notification = {
+  data () {
+    return {
+      userExpanded: false
+    }
+  },
+  props: [
+    'notification'
+  ],
+  components: {
+    Status, StillImage, UserCardContent
+  },
+  methods: {
+    toggleUserExpanded () {
+      this.userExpanded = !this.userExpanded
+    }
+  }
+}
+
+export default Notification