refactor(layout): migrate styled components to sx prop in Header and Sidebar

feat(pages): add new KnowledgeBaseList and Login pages with complete functionality

feat(services): implement knowledge service with comprehensive API methods

feat(hooks): add login hooks for authentication and form management

src/pages/login/Login.tsx

@@ -16,8 +16,8 @@ import {
   Tabs,
   Tab
 } from '@mui/material';
-import LanguageSwitcher from '../components/LanguageSwitcher';
-import { useLoginPage } from '../hooks/login-hooks';
+import LanguageSwitcher from '../../components/LanguageSwitcher';
+import { useLoginPage } from '../../hooks/login_hooks';
 
 const Login = () => {
   const { t } = useTranslation();