Add initial frontend-web setup with React, TypeScript, and Vite

- Created a new frontend-web project structure with essential files including package.json, tsconfig, and Vite configuration.
- Added ESLint and Prettier configurations for code quality.
- Implemented basic UI components (Button, Card, Input, Label) with Tailwind CSS for styling.
- Established Redux store with user authentication slice and typed hooks for state management.
- Included a sample App component demonstrating the use of UI components and Redux store.
- Set up .gitignore to exclude build artifacts and dependencies.

frontend-web/src/lib/utils.ts

@@ -0,0 +1,6 @@
+import { clsx, type ClassValue } from "clsx"
+import { twMerge } from "tailwind-merge"
+
+export function cn(...inputs: ClassValue[]) {
+  return twMerge(clsx(inputs))
+}