Use vueuse useStorage instead of manually using localStorage

web/src/stores/settings.ts

@@ -1,13 +1,14 @@
+import { useStorage } from "@vueuse/core";
 import { defineStore } from "pinia";
 
 interface State {
-    ShowMenu?: boolean,
-    ExpandMenu?: boolean,
+    ShowMenu: boolean | null,
+    ExpandMenu: boolean,
 }
 
 export const useSettingsStore = defineStore('settings', {
-    state: (): State => ({
-        ShowMenu: undefined,
+    state: () => useStorage<State>('settings', {
+        ShowMenu: null,
         ExpandMenu: false,
     }),
     actions: {