Rebuilt the shutdown/reboot dialog in Svelte

src/js/app.js

@@ -106,8 +106,7 @@ module.exports = new Vue({
       firmwareUpgrading: false,
       checkedUpgrade: false,
       firmwareName: "",
-      latestVersion: "",
-      confirmShutdown: false,
+      latestVersion: ""
     };
   },
 
@@ -283,10 +282,17 @@ module.exports = new Vue({
     },
 
     show_upgrade: function () {
-      if (!this.latestVersion) return false;
+      if (!this.latestVersion) {
+        return false;
+      }
+
       return is_newer_version(this.config.version, this.latestVersion);
     },
 
+    showShutdownDialog: function () {
+      SvelteComponents.showDialog("Shutdown");
+    },
+
     update: async function () {
       const config = await api.get("config/load");
 
@@ -303,16 +309,6 @@ module.exports = new Vue({
       SvelteComponents.handleConfigUpdate(this.config);
     },
 
-    shutdown: function () {
-      this.confirmShutdown = false;
-      api.put("shutdown");
-    },
-
-    reboot: function () {
-      this.confirmShutdown = false;
-      api.put("reboot");
-    },
-
     connect: function () {
       this.sock = new Sock(`//${location.host}/sockjs`);