views: HomeFave: call init when user presses back

This is to load the tab that is activated in history. Also removes the
onpopstate upon deactivate so that
init is not called multiple times or on other unrelated pages.

src/views/HomeFave.vue

@@ -177,13 +177,15 @@ export default {
         console.log("Activated, so adding refresh timer to HomeFav");
         this.changeTab(true);
         this.setAutoRefresh();
+        window.onpopstate = () => { this.init(); };
     },
     deactivated() {
         if (this.refreshTimer) {
             console.log("Navigating away, so deleting the refresh timer in HomeFav");
             clearInterval(this.refreshTimer);
             this.refreshTimer = null;
         }
+        window.onpopstate = () => { };
     },
     beforeDestroy() {
         console.log("Destroying, so deleting the refresh timer in HomeFav");