Fixes: 1) Replace `ElNotification` calls with `useNotification` utility across all authentication and user-related composables; 2) Add missing semicolons in multiple index exports and styled components; 3) Resolve issues with reactivity in `useStore` composable by renaming and restructuring product variables;
Extra: 1) Refactor localized strings and translations for better readability and maintenance; 2) Tweak styles including scoped styles, z-index adjustments, and SCSS mixins; 3) Remove unused components and imports to streamline storefront layout.
Fixes: 1) Refactor `useProducts` and `useCategorybySlug` composables for improved error handling and lazy loading; 2) Correct import path in `product-page.vue` for `useProductBySlug`; 3) Update `useLanguages` composable to set current locale from local storage; 4) Remove unused `auth.js`, `base-header.vue`, and deprecated GraphQL fragments;
Extra: Minor styling adjustments and removal of redundant console logs; Updated `package-lock.json` dependencies for version consistency.
