Move showMenu to store

web/src/store/index.js

@@ -8,6 +8,7 @@ const store = createStore({
                 Token: null,
                 User: null
             },
+            ShowMenu: null,
             Budgets: {},
             CurrentBudgetID: null,
             Accounts: [],
@@ -18,6 +19,9 @@ const store = createStore({
         }
     },
     mutations: {
+        toggleMenu(state) {
+            state.ShowMenu = !state.ShowMenu;
+        },
         initializeStore(state) {
             const store = localStorage.getItem("store");
             if(store){