Add new mobile menu

src/store/index.ts

@@ -0,0 +1,15 @@
+import {GetterTree, MutationTree} from "vuex";
+
+export const state = () => ({
+  opened: false
+})
+
+export type RootState = ReturnType<typeof state>
+
+export const getters: GetterTree<RootState, RootState> = {
+  opened: state => state.opened,
+}
+
+export const mutations: MutationTree<RootState> = {
+  TOGGLE_OPENED: (state, opened: boolean) => (state.opened = opened),
+}