Improve loading indicator behaviour

Show it on initial request for the entire box but if you click on the
block button just rely on the block button's own loading behaviour.

pages/auth/settings/blacklist.vue

@@ -32,13 +32,13 @@ import { mapGetters } from 'vuex'
     data() {
       return {
         blacklistedUsers: [],
+        isLoading: true
       }
     },
     computed: {
       ...mapGetters({
         loggedInUser: 'auth/user',
-        userSettings: 'feathers-vuex-usersettings/current',
-        isLoading: 'feathers-vuex-usersettings/isPending'
+        userSettings: 'feathers-vuex-usersettings/current'
       })
     },
     async mounted(){
@@ -50,6 +50,7 @@ import { mapGetters } from 'vuex'
         }
       })
       this.blacklistedUsers = res.data
+      this.isLoading = false
     }
   };
 </script>