✨ Adds refresh button to widget, for reloading data

src/components/Widgets/CryptoWatchList.vue

@@ -75,6 +75,10 @@ export default {
     },
   },
   methods: {
+    /* Extends mixin, and updates data. Called by parent component */
+    update() {
+      this.fetchData();
+    },
     /* Make GET request to CoinGecko API endpoint */
     fetchData() {
       axios.get(this.endpoint)